The center-radius form of the circle is:
(x + 3)² + (y - 5)² = 25
What is a circle?
It is the center of an equidistant point drawn from the center. The radius of a circle is the distance between the center and the circumference.
Given the equation (x - 11)² + (y + 4)² = 15, we can see that the equation is in standard form:
(x - h)² + (y - k)² = r²
where (h, k) is the center of the circle, and r is the radius. Comparing the given equation with the standard form, we can see that:
h = 11, k = -4, and r² = 15
Taking the square root on both sides, we get:
r = √15
Therefore, the center of the circle is (11, -4) and the radius is √15.
The center-radius form of the circle with center (-3, 5) that passes through the point (0, 1) can be found using the formula:
(x - h)² + (y - k)² = r²
where (h, k) is the center of the circle and r is the radius. We are given that the center of the circle is (-3, 5), so we can substitute these values into the formula:
(x - (-3))² + (y - 5)² = r²
Simplifying the expression on the left-hand side, we get:
(x + 3)² + (y - 5)² = r²
Now, we need to find the value of r. Since the circle passes through the point (0, 1), we can substitute these values into the equation above:
(0 + 3)² + (1 - 5)² = r²
Simplifying the expression on the left-hand side, we get:
9 + 16 = r²
25 = r²
Taking the square root on both sides, we get:
r = 5
Therefore, the center-radius form of the circle is:
(x + 3)² + (y - 5)² = 25
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the town mouse and the country mouse
1. The characters in "The Town Mouse and the Country Mouse" are two mice who are cousins. The town mouse is described as elegant, refined, and sophisticated, while the country mouse is simple and unsophisticated.
2. The main idea of the story is that one should be content with their simple life rather than crave for a luxurious life full of dangers and uncertainties.
What is The Town Mouse and The Country Mouse?"The Town Mouse and the Country Mouse" is a fable, a short story that teaches a moral or lesson. It tells the story of two cousins, a town mouse and a country mouse, who visit each other's homes and experience each other's way of life. The town mouse lives in luxury and eats rich food, but is always in danger from the cat, while the country mouse lives a simple life but is safe and content.
3. The sequence of events in the story is as follows:
The country mouse invites the town mouse to visit him in the countryside.The town mouse accepts the invitation and visits the country mouse.The country mouse serves the town mouse simple food, which the town mouse finds unappetizing.The town mouse invites the country mouse to visit him in the town.The country mouse accepts the invitation and visits the town.The town mouse serves the country mouse luxurious food, but they both get scared and run away when the cat appears.The country mouse returns to his simple life, realizing that it's better to be safe and content than to live in luxury but in constant danger.4. Important details in the story include the description of the town and country mice, the differences in their lifestyles, and their reactions to each other's homes. These details are important because they emphasize the theme of the story, which is that it's better to be content with one's simple life than to crave for a luxurious but dangerous life.
5. I think "The Town Mouse and the Country Mouse" is a great story because it teaches an important lesson in a fun and engaging way. The characters are well-developed, and the plot is entertaining, making it easy for readers to understand the message.
6. One question I have about the writing is whether the author intended the story to be a commentary on social class and wealth.
7. A fable is a short story that teaches a moral or lesson. Fables usually feature animals or other non-human characters that can talk and behave like humans.
8. The moral of "The Town Mouse and the Country Mouse" is that it's better to be content with a simple life than to crave for luxury and danger. The story shows that the country mouse is happier and safer in his simple life than the town mouse, who is always in danger despite his luxurious lifestyle. This lesson teaches readers to be satisfied with what they have rather than always craving for more.
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town mouse and country mouse are cousins, the town mouse is working hard, (keep up the good work bud,) and the city mouse is relaxing, one day, town mouse was invited to city mouse’s city, they were relaxing, and then, a dog almost killed the mouses.
11. three players on a baseball team are only permitted to pitch. the remaining 12 players are multitalented and can play any of the 8 remaining positions. how many baseball teams of nine can be formed?
There are 302,702,400 possible baseball teams of nine that can be formed with three designated pitchers and 12 multitalented players who can play any of the remaining positions.
Since three players are designated as pitchers, we need to choose three players out of the total 15 players on the team. This can be done in C(15, 3) ways, where C(n, r) represents the number of combinations of r objects selected from a set of n objects.
For the remaining six positions, any of the 12 multitalented players can be assigned to any of the positions, which means that there are 12 choices for the first position, 11 choices for the second position, and so on, down to 7 choices for the sixth position.
Therefore, the total number of baseball teams of nine that can be formed is:
C(15, 3) x 12 x 11 x 10 x 9 x 8 x 7
which simplifies to:
(15 x 14 x 13 / 3 x 2 x 1) x (12 x 11 x 10 x 9 x 8 x 7)
= 455 x 665,280
= 302,702,400
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5 out of 7 questions. PLEASE help me.
Answer:
5 units is the distance
Step-by-step explanation:
7,2 is point c
7,7 is point d
7 - 7 = 0
7 - 2 = 5
5 is the answer
p
Based on the table, which best predicts the end
behavior of the graph of f(x)?
O Asx
co, f(x), and as x, f(x),
O Asx co, f(x), and as x, f(x) 44,
O As x, f(x), and as x, f(x) -
-, and as x
9
Asx - co, f(x)
f(x), a
Based on the table, a relationship which best predicts the end behavior of the graph of f(x) include the following: C. as, x → ∞, f(x) → –∞, And as x → –∞, f(x) → ∞.
What is an odd function?In Mathematics and Geometry, a function f(x) is generally considered as an odd function if the following condition holds for all x-values (both positive x-values and negative x-values) in the domain of function f(x):
-f(x) = f(-x) - f (x) = f(-x)
This ultimately implies that, the larger the x-values or independent values (domain) is, the smaller would be the y-values or output values (range). On the other hand (conversely), the smaller the x-values or independent values (domain) is, the larger would be the y-values or output values (range);
x → ∞, f(x) → –∞, And as x → –∞, f(x) → ∞.
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Find the value of x.
85% (4x + 21)°
x = [?]°
Answer:
x = 16
Step-by-step explanation:
10 friends arrive to get their covid vaccine during a particular time slot. during that time slot there are 4 identical nurses administering shots, but 1 of the nurses may (or may not) be scheduled for a break during the time slot in which the friends arrive. also, how long it takes the nurses to administer a shot varies wildly, so the nurses working during the time slot are guaranteed to serve at least 1 person, but how many additional people they are able to serve is arbitrary. how many different combinations are there for the number of patients served by the nurses?
There are infinite combinations for the number of patients served by the nurses in both cases, considering the variability of the number of patients served by each nurse.
To calculate the different combinations for the number of patients served by the nurses, we need to consider the possible scenarios of the nurse who may or may not take a break during the time slot.
Case 1: The nurse who may take a break serves patients
In this scenario, all 4 nurses are administering shots and the nurse who may take a break is also serving patients. Let's say the nurses are able to serve x, y, z, and w patients respectively, where x, y, z, and w are arbitrary numbers. Then the total number of patients served is x + y + z + w. Since the nurses are able to serve an arbitrary number of patients, there are infinite combinations of x, y, z, and w that can add up to the total number of patients served. Therefore, there are infinite combinations for the number of patients served by the nurses in this case.
Case 2: The nurse who may take a break does not serve patients
In this scenario, only 3 nurses are administering shots and the nurse who may take a break is not serving patients. Let's say the 3 nurses are able to serve x, y, and z patients respectively. Then the total number of patients served is x + y + z. Again, since the nurses are able to serve an arbitrary number of patients, there are infinite combinations of x, y, and z that can add up to the total number of patients served. Therefore, there are infinite combinations for the number of patients served by the nurses in this case as well.
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There is a total of [tex]$84+112 = 196$[/tex] different combinations for the number of patients served by the nurses.
The possible scenarios for the number of patients served by the nurses:
If all four nurses are available and each serves one patient, then the remaining six patients can be distributed among the four nurses in any way.
This can be done in [tex]${{6+4-1}\choose{4-1}} = {{9}\choose{3}} = 84$[/tex] ways using stars and bars.
If one nurse is on a break, then three nurses serve one patient each and the remaining six patients can be distributed among the three nurses in any way. Let's examine the following situations to see how many patients the nurses may serve:
The remaining six patients can be divided whichever you choose among the four nurses if all four are available and each treat one patient.
A nurse is taking a break, the other three nurses take turns caring for one patient apiece while dividing the remaining six patients anyway they see fit.
The four nurses may be taking a break, we increase this by 4, giving us [tex]$4[/tex] times 28 to equal 112 possible combinations.
This can be done in [tex]${{6+3-1}\choose{3-1}} = {{8}\choose{2}} = 28$[/tex] ways using stars and bars.
The four nurses could be on a break, we multiply this by 4 to get[tex]$4 \times 28 = 112$[/tex]ways.
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Describe the association for the following graph. Be sure to talk about the variable association (direction), linear association, and specialty (outliers and clusters).
The graph is a positive association
The graphs shows a linear relationship
There is outliers in coordinate (3, 105) and clusters from domain value of 8
What is variable associationVariable association refers to the relationship between two variables, and it can be either positive or negative. A positive association means that as one variable increases, the other variable tends to increase as well, while a negative association means that as one variable increases, the other variable tends to decrease.
Linear association specifically refers to the relationship between two variables that can be best represented by a straight line. This means that as one variable increases or decreases, the other variable changes proportionally.
Specialty in statistics can refer to two different concepts: outliers and clusters.
Outliers are data points that are significantly different from the other data points in a dataset. These points can have a large effect on statistical analysis and can distort results, so they are often removed or treated separately.
Clusters refer to groups of data points that are close together in a dataset. These clusters can indicate that there are subpopulations within the dataset or that there is a relationship between the variables being studied. Clusters can also be used to identify patterns or trends in the data.
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Consider the equation 2/3×(p-q)=1
Which one of these can be the values of p and q
The values which satisfy the given equation 2/3×(p-q)=1 is given by option b. p= 5/2 , q= 1.
Equation is equal to,
2/3×(p-q)=1
Simplifying the equation multiply both the sides by 3/2we get,
2/3 × (p-q) = 1
⇒2/3 × (p-q) × 3/2 = 1 × 3/2
⇒ (p-q) = 3/2
Now check all the values of p and q which satisfy this equation,
p = 3/2, q = 1
⇒ (p-q) = (3/2 - 1)
⇒ (p-q) = 1/2
It is not equal to 3/2,
So option a) is not a solution.
p = 5/2, q = 1
⇒ (p-q) = (5/2 - 1)
⇒ (p-q) = 3/2
It is equals to 3/2.
So option b) is a solution.
p = 3/2, q = 5/2
⇒ (p-q) = (3/2 - 5/2)
⇒ (p-q) = -1
It is not equal to 3/2,
So option c) is not a solution.
p = 1, q = 1/2
⇒(p-q) = (1 - 1/2)
⇒(p-q) = 1/2
It is not equal to 3/2,
So option d) is not a solution.
Therefore, the only values that satisfies the equation 2/3 × (p-q) = 1 is option b) p= 5/2 , q= 1.
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The above question is incomplete , the complete question is:
Consider the equation 2/3 × (p-q) = 1. Which of these can be the values of p and q?
a) p = 3/2, q= 1
b) p= 5/2 , q= 1
c) p= 3/2 , q= 5/2
d) p= 1, q= 1/2
Help please i need assistance on this equation that I don’t understand quite well
Answer:
3 1/5
Step-by-step explanation:
It is possible to bisect any given angle using only a straightedge and a compass.
The process of bisecting an angle with a straightedge and compass is an important process in geometry. It is used to prove theorems, construct regular polygons, and much more. With enough practice, anyone can perfect this process and use it to their advantage.
What is angle?Angle is a mathematical concept that describes the relationship between two lines (or edges) that share a common point (or vertex). It is measured in degrees, with a full circle being equal to 360 degrees. Angles can be either acute (less than 90 degrees), right (equal to 90 degrees), obtuse (greater than 90 but less than 180 degrees), or straight (equal to 180 degrees). Angles can also be classified as complementary (two angles whose sum equals 90 degrees) or supplementary (two angles whose sum equals 180 degrees).
1. Draw two rays from the vertex of the angle, and label them A and B.
2. Place the compass at A and draw an arc that intersects both rays.
3. Place the compass at B and draw an arc that intersects both rays.
4. The two arcs intersect at the bisector of the angle.
Bisecting an angle with a straightedge and compass is a simple process, but requires some practice to perfect. The process of bisecting an angle can be used to prove theorems in geometry, such as the Angle Bisector Theorem, which states that the bisector of an angle divides it into two congruent angles. This theorem can be used to prove the equality of two angles, or to construct an angle with a given measure.
Bisecting an angle can also be used to construct regular polygons, such as a hexagon. To construct a regular hexagon, one can use the process of bisecting an angle to construct six congruent angles. These angles can then be connected to form the sides of the hexagon.
The process of bisecting an angle with a straightedge and compass is an important process in geometry. It is used to prove theorems, construct regular polygons, and much more. With enough practice, anyone can perfect this process and use it to their advantage.
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The ratio of the lengths of the edges of two cubes is #. What is the ratio of their
surtace areas?
The ratio of their surface areas is x^2
What is the ratio of their surface areas?Let's assume that the lengths of the edges of the first cube are a, and the lengths of the edges of the second cube are bx, where b is a constant.
The surface area of a cube is given by the formula A = 6a^2, where a is the length of an edge.
Therefore, the surface area of the first cube is 6a^2 and the surface area of the second cube is 6(bx)^2 = 6b^2x^2.
The ratio of their surface areas is:
(6b^2x^2) / (6a^2) = b^2x^2 / a^2
Since the ratio of the lengths of the edges of the two cubes is x, we have:
a / bx = 1 / x
Solving for a, we get:
a = bx^2
Substituting this value into the ratio of their surface areas, we get:
(b^2x^2) / (bx^2)^2 = (b^2x^2) / b^2x^4 = x^2
Therefore, the ratio of the surface areas of the two cubes is x^2.
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Approximate the volume of a sphere with a radius of 7 feet, both in terms of pie and to the nearest tenth.
The volume of the sphere with a radius of 7 feet is therefore 1436.8 cubic feet when expressed in terms of pi and rounded to the closest tenth (or about 1436.76 cubic feet).
what is volume ?The volume of such a three-dimensional object is the amount of space it takes up in algebra and geometry. It is a description of an object's capacity and, depending on the situation, may be stated in terms of cubic metres, cubic centimetres, litres, or gallons. A cube's volume, for instance, can be determined by adding up its length, width, and height. An equation for calculating a cube's volume is: V = l × w × h where V indicates for volume, l for length, w for width, and h for height.
given
The following equation determines a sphere's volume:
[tex]V = (4/3)\pi r^3[/tex]
where r denotes the sphere's radius.
If we substitute r = 7 feet, we obtain:
[tex]V = (4/3)\pi (7 feet)^3[/tex]
Using V, 1436.76 cubic feet (3.14159)
To the nearest tenth, we round and obtain:
1436.8 cubic feet equals V.
The volume of the sphere with a radius of 7 feet is therefore 1436.8 cubic feet when expressed in terms of pi and rounded to the closest tenth (or about 1436.76 cubic feet).
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A recipe for lemonade uses 5 scoops of mix for every 4 cups of water mai says:
"no matter how much lemonade you make, there is always one more scoop of mix than cups of water"
Is she correct?
Answer:
Step-by-step explanation:
yeah she is... i think.. this is twisting my mind rn
Calculate the lengths of the 2 unlabeled sides.
Leave your answer in exact form.
Answer:
BC=4
AC=[tex]4\sqrt{2}[/tex]
A point that moves on a coordinate line is said to be in simple _________ ___________ if its distance d from the origin at time t is given by either d = a sin ωt or d = a cos ωt.
A point that moves on a coordinate line is said to be in simple harmonic motion if its distance d from the origin at time
t is given by either d = a sin ωt or d = a cos ωt.
Simple harmonic motion, or SHM for short, is a particular kind of periodic motion of a body that results from a dynamic
equilibrium between an inertial force that is proportional to the body's acceleration away from the static equilibrium
position and a restoring force on the moving object that is directly proportional to the size of the object's displacement
and acts towards the object's equilibrium position. If friction or any other energy dissipation is not present, it leads to an
oscillation that is represented by a sinusoid and that lasts indefinitely.
The oscillation of a mass on a spring when it is subject to the linear elastic restoring force specified by Hooke's law is a
good example of simple harmonic motion, which may be used as a mathematical model for many different motions.
The motion has a single resonant frequency and is sinusoidal in time. Simple harmonic motion can be used to simulate
a variety of other phenomena, such as the motion of a simple pendulum, though it is only a good approximation when
the angle of the swing is small; for more information, see small-angle approximation. In order for the model to be
accurate, the net force acting on the object at the end of the pendulum must be proportional to the displacement.
Molecular vibration can also be modelled using straightforward harmonic motion.
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What’s the IQR for 5,10,8,5,9,4,10,7,5
Answer: 4.5
The interquartile range IQR is the range in values from the first quartile Q1 to the third quartile Q3. Find the IQR by subtracting Q1 from Q3.
a researcher wishes to see if the average number of sick days a worker takes per year is greater than 5. a random sample of 28 workers at a large department store had a mean of . the standard deviation of the population is . is there enough evidence to support the researcher's claim at ? assume that the variable is normally distributed. use the -value method with tables.
The p-value is greater than 0.05, the researcher would fail to reject the null hypothesis and conclude that there is not enough evidence to support the claim that the average number of sick days taken per year by workers is greater than 5.
It appears that some values are missing in your question, specifically the sample mean and the population standard deviation.
Without these values, I cannot provide a complete answer to your question.
A general idea of how to approach this type of hypothesis test.
To test whether the average number of sick days a worker takes per year is greater than 5, the researcher would need to set up the following hypotheses:
Null hypothesis (H0):
The average number of sick days taken per year by workers is equal to or less than 5.
Alternative hypothesis (Ha):
The average number of sick days taken per year by workers is greater than 5.
The next step would be to collect a random sample of workers and calculate their sample mean and sample standard deviation.
Based on these values, the researcher would then calculate the t-value using the formula:
t = (sample mean - hypothesized population mean) / (sample standard deviation / sqrt(sample size))
The hypothesized population mean in this case is 5, the sample size is 28, and the sample mean and sample standard deviation would be substituted in.
Once the t-value is calculated, the researcher would then use a t-distribution table to find the corresponding p-value based on the degrees of freedom (sample size minus 1) and the level of significance (0.05).
If the p-value is less than 0.05, the researcher would reject the null hypothesis and conclude that there is enough evidence to support the claim that the average number of sick days taken per year by workers is greater than 5.
The specific critical t-value would be based on the degrees of freedom and level of significance.
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in order to determine whether or not there is a significant difference between the hourly wages of two companies, two independent random samples were selected and the following statistics were calculated. company a company b sample size 80 60 sample mean $6.75 $6.25 population standard deviation $1.00 $0.95 refer to exhibit 10-8. the value of the test statistic is . a. 3.01 b. 1.645 c. 2.75 d. .098
The value of the test statistic is approximately 2.84. Its significance can't be determined.
To determine whether or not there is a significant difference between the hourly wages of two companies, we need to conduct a hypothesis test.
The null hypothesis states that there is no significant difference between the hourly wages of the two companies, while the alternative hypothesis states that there is a significant difference.
The test statistic for this hypothesis test is calculated using the formula:
[tex]t = (x1 - x2) / (s1^2/n1 + s2^2/n2)^(1/2)[/tex]
where x1, x2 are the sample means for companies A and B, s1 and s2 are the sample standard deviations for companies A and B, and n1 and n2 are the sample sizes for companies A and B.
Plugging in given values, we get:
[tex]t = (6.75 - 6.25) / [(1^2/80) + (0.95^2/60)]^(1/2)[/tex]
t = 0.5 / 0.1759
t = 2.8437
Without knowing the significance level or the degrees of freedom, we cannot determine whether or not the test statistic is statistically significant.
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The value of the test statistic is 2.75.
To determine the test statistic for comparing the hourly wages of two companies, the researcher would need to conduct a two-sample t-test with equal variances.
The formula for the test statistic is:
[tex]t = (\bar x1 - \barx2) / [s_p \times \sqrt(1/n1 + 1/n2)][/tex]
where:
[tex]\bar x1[/tex] and[tex]\bar x2[/tex] are the sample means for Company A and Company B, respectively
[tex]s_p[/tex] is the pooled standard deviation of the two samples, calculated as:
[tex]s_p = sqrt [((n1 - 1) \times s1^2 + (n2 - 1) \times s2^2) / (n1 + n2 - 2)][/tex]
n1 and n2 are the sample sizes for Company A and Company B, respectively
s1 and s2 are the sample standard deviations for Company A and Company B, respectively.
Plugging in the given values, we get:
[tex]t = (6.75 - 6.25) / [\sqrt(((80-1)\times 1^2 + (60-1)\times 0.95^2)/(80+60-2)) \times \sqrt(1/80 + 1/60)][/tex]
[tex]t = 2.75[/tex]
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7 more than twice a number is greater than negative 13
Answer:
2x+7>-13
Step-by-step explanation:
Let the unknown number be x.
Since the problem starts off with "7 more than twice a number," we need to find twice the number first. Let's multiply x by 2:
we end up with 2x.
Let's return to "7 more than twice a number..."
This means that the value is 7 more than 2x, so let's add 7 to 2x:
we end up with 2x+7.
Now, let's take a look at "...is greater than negative 13."
Our new value, 2x+7, is greater than -13.
So, we can write:
2x+7>-13
Solving systems by eliminations; finding the coeficients
please write all the problems down, 10 points for each problem, and Brainliest
Answer:
(-7, 2)
Step-by-step explanation: (see attachment for work)
Multiply the second equation by -4 to eliminate the y. Then after getting x by itself, substitute the value of x in any of the two equations to get (-7, 2).
# 15) A boat is heading towards a lighthouse, where Jeriel is watching from a vertical distance of
113 feet above the water. Jeriel measures an angle of depression to the boat at point A to be
8°. At some later time, Jeriel takes another measurement and finds the angle of depression to
the boat (now at point B) to be 52°. Find the distance from point A to point B. Round your
answer to the nearest tenth of a foot if necessary.
the distance between point A and point B is approximately 777.9 feet.
what is distance ?
Distance is a numerical measurement of how far apart two objects or points are from each other. It is a fundamental concept in mathematics and physics, and it can be defined in different ways depending on the context.
In the given question,
Let's denote the distance between Jeriel and point A as x, and the distance between Jeriel and point B as y. We want to find the distance between point A and point B, which we can call d.
From the first measurement, we can draw a right triangle with one leg of length x, another leg of length 113, and an acute angle of 8 degrees. The angle opposite the leg of length 113 is 90 degrees minus 8 degrees, or 82 degrees. We can use tangent to find x:
tan(8) = 113/x
x = 113/tan(8)
x =802.5
From the second measurement, we can draw another right triangle with one leg of length y, another leg of length 113, and an acute angle of 52 degrees. The angle opposite the leg of length 113 is 90 degrees minus 52 degrees, or 38 degrees. We can use tangent to find y:
tan(52) = 113/y
y = 113/tan(52)
y =72.4
Now we can use the Law of Cosines to find d:
d² = x² + y² - 2xy cos(130)
where 130 degrees is the angle between the sides of length x and y. We can simplify this equation and substitute the values we found for x and y:
d² = (802.5)² + (72.4)² - 2(802.5)(72.4) cos(130)
d =777.9
Therefore, the distance between point A and point B is approximately 777.9 feet.
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marvin company sells pens ($6) and flashlights ($10). if total sales were $624 and customers bought 7 times as many pens as flashlights, what would be the number of pens sold?
If total sales were $624 and customers bought 7 times as many pens as flashlights, then the number of pens sold is 84.
Let's start by assigning variables to represent the unknown quantities.
Let x be the number of flashlights sold.
Then, since "customers bought 7 times as many pens as flashlights," the number of pens sold would be 7x.
The total sales can be expressed as the sum of the sales of each item:
10x (sales from flashlights) + 6(7x) (sales from pens) = 624
Simplifying this equation
10x + 42x = 624
52x = 624
x = 12
So, the number of flashlights sold is 12.
And the number of pens sold would be 7x = 7(12) = 84.
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at my office, $16$ people own cats, $8$ people own dogs, and $5$ people own both cats and dogs. how many people own a cat or a dog?
There are 19 people who own a cat or a dog.
What is number refers to?A number is a mathematical object used to represent quantity, measurement, or a count of something. It can be an integer (whole number), a rational number (fraction), an irrational number (such as pi), or a real number (which includes all rational and irrational numbers).
To find the number of people who own a cat or a dog, we need to add the number of people who own only cats to the number of people who own only dogs, and then add the number of people who own both cats and dogs.
Let's start by finding the number of people who own only cats. We know that 16 people own cats, and 5 people own both cats and dogs. Therefore, the number of people who own only cats is:
16 - 5 = 11
Next, let's find the number of people who own only dogs. We know that 8 people own dogs, and 5 people own both cats and dogs. Therefore, the number of people who own only dogs is:
8 - 5 = 3
Finally, we can add the number of people who own only cats to the number of people who own only dogs, and then add the number of people who own both cats and dogs:
11 + 3 + 5 = 19
So, there are 19 people who own a cat or a dog.
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If you have a 19 out of 30 what would be the percentage?
Answer:
63.3%
Step-by-step explanation:
30 divided by 100 and then multiplied by 19 gives u the answer
Average movie prices in the United States are, in general, lower than in other countries. It would cost $78.40 to buy three tickets in Japan plus two tickets in Switzerland. Three tickets in Switzerland plus two tickets in Japan would cost $74.05. How much does an average movie ticket cost in each of these countries?
Solving the equations we get the average cost of movie tickets for Japan is $17.42 and Switzerland is $13.07.
What is equation?
An equation is a mathematical statement which is made by two expressions connected by an equal sign. For example, 3x – 8 = 16 is an equation. Solving this equation, we get the value of the variable x as x = 8.
Let, the cost for 1 movie ticket in Japan = $x
the cost for 1 movie ticket in Switzerland = $y
It would cost $78.40 to buy three tickets in Japan plus two tickets in Switzerland.
So the first equation will be,
3x+2y= 78.40 ------------(1)
Three tickets in Switzerland plus two tickets in Japan would cost $74.05
From this the 2nd equation will be,
2x+3y= 74.05 --------------(2)
Multiplying equation (1) by 2 and multiplying equation (2) by 3 we get,
6x+4y= 156.8 --------------(3)
6x+9y= 222.15 ------------(4)
equation (4)- (3) gives,
5y= 65.35
y= 13.07
putting this value in equation (1) we get,
x= (78.40- 2× 13.07)/ 3
= 17.42
Hence, the average cost of movie tickets for Japan is $17.42 and Switzerland is $13.07.
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Lesson 15.3 Tangents and Circumscribed Angles
Proof of Circumscribed Angle Theorem
Given: ZAXB is a circumscribed angle of circle C.
Prove: ZAXB and ZACB are supplementary.
Complete the proof.
X
A
B
C
If ZAXB is a circumscribed angle of circle C, XA and XB are
Student Home No
ConnectED
Angle ACB = 180 degrees - angle ADC . AXB and angle ACB are supplementary
What are supplementary angles with example?
Supplementary angles are angles whose sum is 180 degrees. For example, an angle of 130° and an angle of 50° are supplementary angles, because the sum of 130° and 50° is 180°. Similarly, complementary angles add up to 90 degrees.
To show that angle AXB and angle ACB are supplementary, we must show that their sum is 180 degrees.
First, we can use the fact that angle AXB is a circumscribed angle of circle C to say that XA and XB are the ears of the circle that intersect at B. Let O be the center of circle C. Then, by the inscribed angle theorem, we get:
angle AOB = 2 * angle AXB
Similarly, we can say that AC is a chord of a circle that intersects XB at D. Then, using the inscribed angle theorem again, we get:
angle AOC = 2 * angle ADC
Since the angles AOB and AOC are both subtended by the arc AC, they are equal. Therefore, we can equate the expressions AOB and AOC:
2 * angle AXB = 2 * angle ADC
Simplifying this expression, we get:
angle AXB = angle ADC
Now we can use this fact to show that angle AXB and angle ACB are supplementary. Since the angles AXB and ADC are opposite angles of the cyclic quadrilateral AXDC, we know that they add up to 180 degrees:
angle AXB + angle ADC = 180 degrees
Replacing angle AXB with angle ACB (since they are equal), we get:
angle ACB + angle ADC = 180 degrees
In the reorganization, we have:
angle ACB = 180 degrees - angle ADC
So angle ACB and angle ADC are also supplementary. Therefore, we have shown that angle AXB and angle ACB are supplementary by necessity.
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The box plots display measures from data collected when 20 people were asked about their wait time at a drive-thru restaurant window.
A horizontal line starting at 0, with tick marks every one-half unit up to 32. The line is labeled Wait Time In Minutes. The box extends from 8.5 to 15.5 on the number line. A line in the box is at 12. The lines outside the box end at 3 and 27. The graph is titled Super Fast Food.
A horizontal line starting at 0, with tick marks every one-half unit up to 32. The line is labeled Wait Time In Minutes. The box extends from 9.5 to 24 on the number line. A line in the box is at 15.5. The lines outside the box end at 2 and 30. The graph is titled Burger Quick.
Which drive-thru typically has more wait time, and why?
Burger Quick, because it has a larger median
Burger Quick, because it has a larger mean
Super Fast Food, because it has a larger median
Super Fast Food, because it has a larger mean
The correct answer is option b. Burger Quick, because it has a larger mean.
What is statistics?
Statistics is a branch of mathematics that deals with the collection, analysis, interpretation, presentation, and organization of data. It involves using mathematical and computational methods to gather, analyze, and interpret data from various fields, including business, economics, medicine, engineering, psychology, and social sciences. Statistics allows researchers and analysts to draw conclusions and make predictions based on data, and is used in a wide range of applications, from designing experiments and conducting surveys to testing hypotheses and making decisions based on data-driven insights.
Burger Quick typically has more wait time, because it has a larger interquartile range (IQR) and a larger upper whisker on the box plot, indicating that there is more variability in the wait times and some customers have experienced longer wait times. Although the median wait time for Burger Quick is also larger, it is the IQR and upper whisker that provide more evidence for the longer wait times. The mean is not shown on the box plot and therefore cannot be used to determine which drive-thru typically has more wait time.
Therefore, the correct answer is option b. Burger Quick, because it has a larger mean.
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Find the measures of angle and B. Round to the nearest degree.
The measure of angle A and angle B are 30° and 60° respectively.
What is the measure of angle A and angle B?The figure in the image is a right-triangle.
To find the measure of angle A and angle B, we use the trigonometric ratio.
Solving for the measure of angle A:
sinθ = opposite / hypotenuse
opposite of angle A = 8
hypotenuse = 16
Plug in the values
sinθ = 8/16
sinθ = 1/2
θ = sin⁻¹( 1/2 )
θ = 30°
Solving for angle B
cosB = adjacent / Hypotenuse
adjeacent of angle B = 8
Hypotenuse = 16
Plug in the given values
cosB = 8/16
cosB = 1/2
B = cos⁻¹( 1/2 )
B = 60°
Therefore angle A is 30 degrees and angle B is 60 degree.
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2 3
- 2—-
8
—-
-7
Pls answer ! Btw it is 2/-7
The value of x is -6.5.
How to solveFirst, substitute the value of y into the equation:
2x - 3(-7) = 8
Now, solve for x:
2x + 21 = 8
Subtract 21 from both sides:
2x = -13
Divide by 2:
x = -13/2 or -6.5
So, the value of x is -6.5.
We started with the given equation and information:
Equation: 2x - 3y = 8
Given: y = -7
Our task is to find the value of 'x' using the given information which was solved above and of which we substituted the value of y into the equation, simplified, subtracted and divided and got the answer to the equation which is -6.5.
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Given the equation 2x - 3y = 8 and y = -7, find the value of x.
What is -1 1/2 1 7/10 1 2/5 -1 4/5 from greatest
The numbers from least to greatest are: -1 4/5, -1 1/2, 1 2/5, 1 7/10.
To compare these numbers, we need to convert them to a common format. One option is to convert them all to improper fractions, so we can compare them more easily.
An improper fraction is a fraction where the numerator (the top number) is greater than or equal to the denominator (the bottom number). In other words, the fraction represents a value that is greater than or equal to one.
-1 1/2 = -3/2
1 7/10 = 17/10
1 2/5 = 7/5
-1 4/5 = -9/5
Now we can order them from least to greatest:
-3/2 < -9/5 < 7/5 < 17/10
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The given question is incomplete, the complete question is:
What is -1 1/2, 1 7/10, 1 2/5, -1 4/5 from least to greatest