The angle in radians in simplest form is 7π/4 radians.
How to determine the angle in radians?In Mathematics and Geometry, you will have to divide the central angle that is subtended by the arc of a circle by 360 degrees if you want to calculate the arc length formed by a circle, and then multiply this fraction by the circumference of the circle.
Mathematically, the arc length formed by a circle can be calculated by using the following equation (formula):
Arc length = rθ
Where:
r represents the radius of a circle.θ represents the central angle.By substituting the given parameters into the arc length formula, we have the following;
7π/2 = 2 × θ
θ = 7π/4 radians.
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What is the volume of a sphere with a radius of 31.6 cm, rounded to the nearest tenth of a cubic centimeter?
Answer:
132175.2 cm³
Step-by-step explanation:
You want the volume of a sphere with radius 31.6 cm.
VolumeThe volume of a sphere is given by the formula ...
V = 4/3πr³
ApplicationFor a radius of 31.6 cm, we find the volume to be ...
V = 4/3π(31.6 cm)³ ≈ 132,175.2 cm³
The volume of the sphere is about 132,175.2 cm³.
two rectangular prisms, m and n, are mathematically similar. The volumes of m and n are 17cm^3 and 136cm^3, respectively. The height of N is 18 cm. Find the corresponding height of m.
The corresponding height of similar rectangular prism m is 9 centimeter.
Given that, the volume of rectangular prism m is 17 cm³ and the volume of rectangular prism n is 136 cm³.
If two solids are similar, then the ratio of their volumes is equal to the cube of the ratio of their corresponding linear measures.
The height of n is 18 cm.
Here, m³/n³ = 17/136
m³/18³ = 17/136
m³/18³ = 17/136
(m/18)³ = 1/8
(m/18)³ = (1/2)³
m/18 = 1/2
m=9 cm
Therefore, the corresponding height of similar rectangular prism m is 9 centimeter.
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Solve the system.
x + 7y-z = 49
2x - 5y + 2z = -28
x-6y=-32
The values of x, y and z in the given simultaneous equation is:
x = 4
y = 6
z = -3
What is the solution to the simultaneous equation?The 3 simultaneous equations are given as:
x + 7y - z = 49
2x - 5y + 2z = -28
x - 6y=-32
Rearranging the first equation gives:
x = 49 - 7y + z
2x - 5y + 2z = -28
x - 6y = -32
Substitute 49 - 7y + z into equations 2 and 3 to get:
2(49 - 7y + z) - 5y + 2z = -28
49 - 7y + z - 6y = -32
Convert the equation in terms of u and solving simultaneously gives:
y = 6 and z = -3
Thus:
x = 49 - 7(6) + (-3)
x = 4
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URGENT!! ILL GIVE BRAINLIEST! AND 100 POINTS
B) gas mileage decreases with increase of car weight.
Y = x2 - 1 linear or nine linear
Answer:non linear
Step-by-step explanation: since the exponent is greater than 1
How many edges does a rectangular pyramid net has
Answer:
rectangular pyramid has 8 edges
At a certain school, 4/7 of the students are boys. Today, 3/7 of the boys brought their lunch. What fraction of the students are boys who brought their lunch today?
Calcula el volumen de un cilindro cuyo diámetro mide 2.5 cm y tiene una altura de 15.5 cm
The volume of a cylinder whose diameter measures 2.5 cm and has a height of 15.5 cm is equal to 76.10 cubic centimeters.
How to calculate the volume of a cylinder?In Mathematics and Geometry, the volume of a cylinder can be calculated by using this formula:
Volume of a cylinder, V = πr²h
Where:
V represents the volume of a cylinder.h represents the height of a cylinder.r represents the radius of a cylinder.Note: Radius = diameter/2 = 2.5/2 = 1.25 cm.
By substituting the parameters, we have:
Volume of cylinder, V = 3.142 × 1.25² × 15.5
Volume of cylinder, V = 76.10 cubic centimeters.
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Complete Question:
Calculate the volume of a cylinder whose diameter measures 2.5 cm and has a height of 15.5 cm.
Graph the equation . Y= 2/3x -1 on I ready
The equation has a slope of 2/3 and the y-intercept is -1. The graph is aatched with the answer below.
An equation of a line is a mathematical expression that describes the relationship between the x and y coordinates of all the points on a straight line. It takes the form y = mx + b, where m is the slope of the line and b is the y-intercept (the point where the line intersects the y-axis). This equation allows us to easily calculate the y-coordinate of any point on the line, given its x-coordinate.
A linear graph, also known as a straight-line graph, is a graph that represents a linear equation. The x and y coordinates of each point on the line are plotted on a graph, with the x values on the horizontal axis and the y values on the vertical axis.
The resulting graph is a straight line that passes through the y-intercept (the point where the line intersects the y-axis) and has a slope equal to the coefficient of x in the equation.
Linear graphs are useful in many fields, including mathematics, science, engineering, economics, and business, as they allow us to visualize and analyze relationships between two variables that are directly proportional to each other.
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There are ten cookies in the cookie jar. Three are Oreos. Two are peanut butter cookies.
Four are chocolate chip cookies. One is a sugar cookie. What fraction of the cookies
are peanut butter cookies?
The fraction of the cookies that are peanut butter cookies is 1/5
What fraction of the cookies are peanut butter cookies?From the question, we have the following parameters that can be used in our computation:
Total = 10
Peanut butter = 2
using the above as a guide, we have the following:
Fraction = Peanut butter /Total
So, we have
Fraction = 2/10
Evaluate
Fraction = 1/5
Hence, the fraction is 1/5
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Edouard Manet's Luncheon on the Grass was shown in the ___ after it was rejected for the annual salon.
A. World's Fair
B. Impressionist exhibition
C. salon d'automne
D. Osalon des refuses
Edouard Manet's Luncheon on the Grass was shown in the Salon des Refuses after it was rejected for the annual salon.
Option D is the correct answer.
We have,
Edouard Manet's painting "Luncheon on the Grass" was first rejected by the Paris Salon in 1863, as it was considered scandalous due to the nudity of the female figure in the painting.
In response to this rejection,
Emperor Napoleon III ordered an exhibition to be held for all the rejected paintings, which was known as the Salon des Refusés (Salon of the Refused).
Thus,
Edouard Manet's Luncheon on the Grass was shown in the Salon des Refuses after it was rejected for the annual salon.
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What meaning of the statements this?
Proposition 3.9 means that if there is a third subgroup that contains the first two subgroups in group G, then when the subgroups are unified, they would still be a subgroup of G.
What does Proposition 3.9 mean ?Put simply, a subgroup collection of Group G is directed if it contains any two subgroups that have a third subgroup containing them both. The subgroup union of this sorted collection is also a subgroup of G.
This definite conclusion occurs because the subgroup criterion states that if any small two subgroups of G are part of a union, then that union is also a subgroup of G. Additionally, a directed subgroup family can be perceived as a series of successive subgroups, with each subgroup being enclosed within the following one.
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Value of V (quickly please)
The measure of v is 61 degree.
We have,
Interior angle = (v - 19) or v
Exterior angle = v + 42
Using exterior Angle Property
Exterior angle= Sum of opposite interior angle
v + 42 = v - 19 + v
v + 42 = 2v - 19
v - 2v = -19 - 42
-v = -61
v= 61
Thus, the value of v is 61.
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what is 2+2
(this is a joke answer if you want)
Answer:
22
Step-by-step explanation:
4
NO LINKS!!! URGENT HELP PLEASE!!!
Determine the equation of the circle graphed below.
Answer:
[tex](x-6)^2+(y+7)^2=4[/tex]
Step-by-step explanation:
The formula for the equation of a circle is:
[tex]\boxed{(x-h)^2+(y-k)^2=r^2}[/tex]
where:
(h, k) is the center.r is the radius.From inspection of the given graphed circle, we can see that the coordinates of its center are (6, -7), and its radius is 2 units. Therefore:
h = 6k = -7r = 2To determine the equation of the graphed circle, substitute these values into the equation of a circle formula:
[tex]\implies (x-6)^2+(y-(-7))^2=2^2[/tex]
[tex]\implies (x-6)^2+(y+7)^2=4[/tex]
Therefore, the equation of the graphed circle is:
[tex]\boxed{(x-6)^2+(y+7)^2=4}[/tex]
10. A spinner and a number cube are used to play a game. The sides of the
cube are numbered 1 through 6. A player's score is the sum of the
numbers on which the spinner lands and the number rolled on the cube.
Find the probability of getting a sum greater than 25.
a.1/2
b. 13/24
C.7/12
d. 1/24
Result:
The probability of getting a sum greater than 25 = 1/9.
The answer is not among the given options.
How do we find the probability?To find the probability, we would need to consider the possible combinations of the spinner and number cube that result in a sum greater than 25.
First, note that the highest possible sum we can get is 12 (that is 6 from the spinner and 6 from the number cube). Therefore, we can remove all combinations that result in a sum of 24 or less.
Next, we can consider the combinations that result in a sum of 25 like this:
Spinner lands on 6, number cube lands on 5
Spinner lands on 5, number cube lands on 6
Spinner lands on 6, number cube lands on 4
Finally, we can consider the combinations that result in a sum greater than 25:
Spinner lands on 5, number cube lands on 5
Spinner lands on 6, number cube lands on 5
Spinner lands on 5, number cube lands on 6
Spinner lands on 6, number cube lands on 6
Here, 4 possible combinations can result in a sum greater than 25 from a total of 6 x 6 = 36 possible outcomes.
So, the probability of getting a sum greater than 25 is 4/36 = 1/9.
Therefore, none of the given answer choices matches this result.
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A rectangular prism has a 10-inch by 2-inch base and a surface area of 424 square inches. What is the volume of a column of 8 rectangular prisms with these dimensions, stacked base-to-base?
The volume of 8 rectangular prism stacked base to base is 2560 in³.
What is volume?Volume is a measure of three-dimensional space.
To calculate the volume of 8 rectangular prism stacked base to base, we use the formula below
Formula:
V = 8lwh.........................................Equation 1Where:
V = Volume of the 8 rectangular prisml = Length of the base of the prismw = Width of the baseh = Height of the onr prismFrom the question,
Given:
l = 10 inw = 2 inh = ?We find the value of h using the formula for the surface area of a prism
A = 2lw+2lh+2wh.................... Equation 2Given:
A = 424 in²Substitute these values into equation 2
424 = 2(10×2)+2(10h)+2(2h)424 = 40+20h+4h424 = 40+24h24h = 424-4024h = 384h = 384/24h = 16 inFinally, we subtitute into equation 1
V = 8×10×2×16V = 2560 in³Hence the volume is 2560 in³.
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When an 18-sided, regular polygon is rotated about its center, at which angle of rotation will the image of the polygon coincide with the preimage?
Answer choices:
A) 24 degrees
B) 10 degrees
C)20 degrees
D) 18 degrees
Kenneth, a competitor in cup stacking, claims that his average stacking time is 8.2 seconds. During a practice session, Kenneth has a sample stacking time mean of 7.8 seconds based on 11 trials.
Answer:
Kenneth's average stacking time is less than 8.2 seconds.
Brainly wouldn't allow me to give an explanation because apparently, it contains inappropriate words..? How odd.
Answer:
The data does not provide sufficient evidence to conclude that Kenneth's mean stacking time is is less than 8.2 seconds
Do not reject the null hypothesis because the p-value 0.0401 is greater than the significance level.
Step-by-step explanation:
Null hypothesis (H0): mu = 8.2 seconds
Alternate hypothesis (Ha): mu < 8.2 seconds
Significance level = 0.04
p-value = 0.0401
Using the p-value approach for testing hypothesis, do not reject H0 because the p-value 0.0401 is greater than the significance level 0.04.
There is not sufficient evidence to conclude that Kenneth's mean stacking time is less than 8.2 seconds.
A box has 1 red marble, 3 blue marbles, and 4 green marbles. Maya draws a blue marble randomly from the box, replaces it, and then draws another marble randomly. What is the probability of drawing 2 blue marbles in a row? Explain your answer. (10 points)
PLEASE ANSWER FAST
The probability of drawing 2 blue marbles in a row is 9/64
What is the probability of drawing 2 blue marbles in a rowFrom the question, we have the following parameters that can be used in our computation:
Marbles = 1 + 3 + 4 = 8
Blue = 3
Selecting the first marble we have
P(Blue) = 3/8
The marble is returned
So, we have the probablility of the second to be
P(Blue) = 3/8
The probability of drawing two blue marbles is
P = 3/8 * 3/8
Evaluate
P = 9/64
Hence, the probability is 9/64
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Answer:
Since the first blue marble is replaced before the second draw, the probability of drawing a blue marble on the second draw is still 3/8, the same as the probability of drawing a blue marble on the first draw.
To find the probability of both events occurring, we can multiply the probabilities of each event:
P(drawing two blue marbles in a row) = P(drawing a blue marble on first draw) x P(drawing a blue marble on second draw)
P(drawing two blue marbles in a row) = (3/8) x (3/8)
P(drawing two blue marbles in a row) = 9/64
Therefore, the probability of drawing two blue marbles in a row is 9/64.
Step-by-step explanation:
3.
Find the arc length of AB.
3 cm
P 64°
A
B
PLEASE SHOW WORK!
The measure of the arc length AB is [tex]\frac{16\pi }{15}[/tex] centimeters.
What is the measure of the arc length?An arc length is simply the distance between two points along a section of a curve.
The arc length is expressed as:
s = 2πr × (θ/360°)
Where s is the arc length, r is the radius, θ is the angle and π is constant pi.
Given that:
Radius r = 3cmAngle θ = 64 degreeArc length s = ?Plug the values into the above formula
s = 2πr × (θ/360°)
s = 2 × π × 3cm × ( 64°/360°)
[tex]s = \frac{16\pi }{15} cm[/tex]
Therefore, the arc length is [tex]\frac{16\pi }{15}[/tex] cm.
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Working her way through school, Liz works two part-time jobs for a total of 28 hours a week. Job A pays $6.00 per hour, and Job B pays $6.60 per hour. How many hours did she work at each job the week that she made $175.80? (Round to two decimal places if necessary.)
Answer:
A: 15 hoursB: 13 hoursStep-by-step explanation:
You want to know the number of hours Liz worked at each job, when the total pay for a total of 28 hours work was $175.80. Job A paid $6 per hour, and job B paid $6.60 per hour.
SetupWe can let 'b' represent the number of hours worked at job B. Then (28-b) is the number of hours worked at job A. Liz's total pay was ...
6(28 -b) +6.60(b) = 175.80
SolutionSimplifying the equation gives ...
0.60b +168.00 = 175.80
0.60b = 7.80 . . . . . . . . . . . subtract 168
b = 13 . . . . . . . . . . . . . . divide by 0.6
28-b = 28-13 = 15 . . . hours at Job A
Liz worked 15 hours at Job A, and 13 hours at Job B.
__
Additional comment
Here, we used one equation. If you use two equations, you can get this same equation by substituting for the variable representing hours at Job A. Letting the variable represent hours at the higher-paying job generally results in arithmetic using positive numbers. If you write the equation for the hours at Job A, negative numbers will usually be involved. Though it shouldn't, sometimes that causes confusion.
A graphing calculator may offer two or three ways (or more) you use to can solve the equations. One of them is illustrated in the attachment. It solves the equations ...
a + b = 28 . . . . . . . . . . . . equation for total hours6a + 6.6b = 175.8 . . . . . . equation for total payCAN SOMEONE HELP WITH THIS QUESTION?✨
1. The Height of the stone after 5s is 490feet
2. The time it will reach the ground 8.98s
3. The velocity of the stone when it hits the ground is 287.33 feet/s
What is motion under gravity?Motion under gravity refers to the movement of an object whose vertical motion is affected by the presence of gravity.
The equation of motion under gravity is given as;
H = ut ± 1/2gt²
v² = u²±2gh
v = u ± gt
1. The height = 18 × 5 -1/2 ( -32) 5²
h = 90+ 400
h = 490 feet
2. The time to reach the ground is calculated as;
h = ut + 1/2gt²
at max height u = 0
total height = 490+800
= 1290m
1290 = 1/2 × 32t²
2580 = 32t²
t² = 80.6
t = √80.6
t = 8.98s
3. The velocity when it reach the ground is
v² = u²+ 2gh
v² = 2× 32 × 1290
v ² = 82560
v = √82560
v = 287.33feet/s
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A 53.7 square foot roll of Country paper towels costs $1.49. An 80.6 square foot roll of the same paper towels costs $1.89 on sale. Which is less expensive per square foot, the small or large roll?
Answer:
The 80.6 square foot roll is less expensive per square foot since it costs $0.03/square foot compared to the other which costs $0.02/square foot
Step-by-step explanation:
Because the question asks which of the two paper towel rolls is less expensive per square foot, we must find the unit rate of both rolls (specifically, cost per 1 square foot)
We can find the unit rate using a proportion:
53.7 square foot roll
[tex]\frac{1.49}{53.7}=\frac{x}{1} \\1.49=53.7x\\0.0277=x\\0.03=x[/tex]
80.6 square foot roll
[tex]\frac{1.89}{80.6}=\frac{x}{1} \\1.89=80.6x\\0.0234=x\\0.02=x[/tex]
Thus, per square foot, the 80.6 square foot roll is less expensive than the 53.7 square foot roll
The graph of f is translated a whole number of units horizontally and vertically to obtain the graph of h
The function f is defined by f(x) = square root of x
Write down the expression for h(x).
The expression for h(x) is,
⇒ h (x) = √(x - 2) + 4
Now, Given that;
Initially the graph f (x) is shifted horizontally to the right.
When the graph shifts to right the function then becomes
f (x) → f (x-b)
Where b is the units by which it is shifted towards right .
So, in the figure we can see that it is shifted 2 units to the right .
So, f(x) → f(x-2)
Since f(x) is,
⇒ f (x) = √x
So, f (x-2) = √x - 2
Now, the new obtained graph is again shifted vertically upward
When the graphs shifts upward;
⇒ f(x) → f(x) + b
where b is the units by which it is shifted upward
So, our obtained f(x-2) when shifted upward by 4 units so using the above given transformation of upward shift
i.e. f(x) → f(x) + b
So, Our new graph h(x) = f(x-2) + 4
⇒ h (x) = √(x - 2) + 4
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9 divided by 11.91 rounded to the nearest hundredth
9 divided by 11.91 rounded to the nearest hundredth is: 0.76
How to divide numbers?To show that two numbers are divided, we can add a division sign '÷' between them. So, for example, if we have to show 36 divided by 6, we can write it as 36 ÷ 6. We can also show it in a fraction form as 36/6.
We want to find 9 divided by 11.91 . Thus, this can be expressed as:
9/11.91
where:
9 is the dividend
11.91 is the divisor
Using calculator, we have:
9/11.91 = 0.76
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Help ASAP please see photo
The circle with a chord are those that have a line joining two points on the circumferences
What is a chord?Recall that a chord a chord of a circle is a line segment that joins any two points on the circumference of the circle
From question number 1, the chords are circles 1, 2 and 5. This is because each of the circles has a line joining two points
2) From question 2 all the chords intercepted each other. This is because an intercept is a point where two straight lines meet. or you can say that An intercept in mathematics is a point on the y-axis through which the slope of a line passes
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15 POINTS HELP!!!
Al and Tim each have rectangular wooden decks on their homes. Al’s deck is 4 feet wide and has an area of 60 x+40 ft². Tim’s deck is 7 feet wide and has an area of 21x+14 ft². Determine an expression for the length of each deck. How many times the length of Tim's deck is Al’s deck?
The length of Tim's deck is 1/15th of the length of Al's deck.
Finding the expressions for the length of each deck.
For Al's deck:
Area of a rectangle = length × width
60x + 40 = length × 4
length = (60x + 40) / 4
length = 15x + 10 ft
For Tim's deck:
Area of a rectangle = length × width
21x + 14 = length × 7
length = (21x + 14) / 7
length = 3x + 2 ft
Now we can find no. of times the length of Tim's deck is Al's deck by dividing the length of Al's deck by the length of Tim's deck:
(15x + 10) / (3x + 2)
Simplifying this expression:
(3(5x + 3) + 1) / (3x + 2)
(3(5x + 3) / (3x + 2)) + (1 / (3x + 2))
15 + (1 / (3x + 2))
Therefore, the length of Tim's deck is 1/15th of the length of Al's deck.
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Una mamá canguro saltó 1/3 de la distancia al lago con su cría dentro de su bolsa. Después saltó las 7,040 yardas restantes sin su cría. ¿Cuántas millas saltó la mamá canguro hasta el lago?
La madre canguro saltó una distancia total de 6 millas para llegar al lago. .
11. Determine the missing side lengths in each triangle.
Pls help me!
The value of the missing lengths are;
a. b = 17. 32, c = 20
b. x = 8. 49, y = 8.49
How to determine the valuesNote that the different trigonometric identities are;
TangentsecantsinecosinecotangentcosecantThese identities have their ratios written as;
sin θ = opposite/hypotenuse
cos θ = adjacent/hypotenuse
tan θ = opposite/adjacent
From the diagram shown, we have;
tan 30 = 10/b
cross multiply the values
b = 17. 32
Also, we have;
sin 30 = 10/c
cross multiply the values
c = 20
b. Using the sine identity
sin 45 = x/12
cross multiply the values
x = 8. 49
Also,
cos 45 = y/12
cross multiply
y = 8. 49
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