a slide caliper has 32 divisions per inch and a vernier of 8 divisions per major division. for this instrument the smallest resolution and uncertainty are:
The smallest resolution for this instrument is 1/256 inches.
This is also the instrument's uncertainty, as it represents the smallest measurable increment.
Let's first understand the terms mentioned:
Slide caliper:
A measuring instrument with a main scale and a vernier scale for taking precise measurements.
Divisions per inch:
The number of equal divisions on the main scale in one inch.
Vernier:
A short auxiliary scale that slides along the main scale, allowing for more precise readings.
Divisions per major division:
The number of equal divisions on the vernier scale that correspond to one division on the main scale.
Now, let's determine the smallest resolution and uncertainty for this instrument.
Calculate the main scale resolution
Main scale resolution = 1 inch / 32 divisions per inch = 1/32 inches
Calculate the vernier scale resolution
Vernier scale resolution = Main scale resolution / Vernier divisions per major division = (1/32 inches) / 8 = 1/256 inches.
For similar question on resolution.
https://brainly.com/question/30557183
#SPJ11
What are the cross-products of the proportion 6/40 = 9/60? Is the proportion TRUE?
54 and 2,400; the proportion is false.
54 and 540; the proportion is true.
360 and 360; the proportion is true.
Therefore, the answer is: 360 and 360; the proportion is true.
54 and 540; the proportion is true.
360 and 360; the proportion is true.
To find the cross-products of the proportion 6/40 = 9/60, we multiply the numerator of the first fraction by the denominator of the second fraction, and the numerator of the second fraction by the denominator of the first fraction.
So we have:
6 × 60 = 360
9 × 40 = 360
The cross-products are 360 and 360.
To check if the proportion is true, we compare the cross-products. If they are equal, then the proportion is true; otherwise, it is false.
Since the cross-products are equal, the proportion is true.
Therefore, the answer is:
360 and 360; the proportion is true.
To know more about fraction visit:
https://brainly.com/question/10354322
#SPJ1
4. You want to use ribbon to create a border along the edge of the paper. The length of the paper is 2 times as long as the width. How much ribbon do you need to create the border? O 41/2 feet O 43/5 feet O 41/4 feet 4 4/5 feet
The amount of ribbon you need to create the border is 4 1/4 feet if x = 17/24
How much ribbon do you need to create the border?From the question, we have the following parameters that can be used in our computation:
The length of the paper is 2 times as long as the width
This means that
Length = 2x
Width = x
The perimeter is
Perimeter = 2 * (2x + x)
Perimeter = 6x
Assuming that x = 17/24
So, we have
Perimeter = 6 * 17/24
Evaluate
Perimeter = 17/4
Simplify
Perimeter = 4 1/4
Hence, the amount needed is 4 1/4 feet
Read more about perimeter at
https://brainly.com/question/19819849
#SPJ1
Evaluate the expression when x = 7 (4x + 9) - 4(x - 1) + x use the answer choices in the diagram
Answer:
The answer is 20
Step-by-step explanation:
when x=7
(4x+9)-4(x-1)+x
(4(7)+9)-4(7-1)+7
28+9 -4(6)+7
37+7-24
44-24
=20
fuel efficiency of manual and automatic cars, part i. each year the us environmental protection agency (epa)releases fuel economy data on cars manufactured in that year. below are summary statistics on fuel efficiency (in miles/gallon) from random samples of cars with manual and automatic transmissions. do these data provide strong evidence of a difference between the average fuel efficiency of cars with manual and automatic transmissions in terms of their average city mileage? assume that conditions for inference are satisfied.
Given the above prompt on hypothesis testing, we can state that specifically, cars with manual transmissions have a significantly higher average city mileage than those with automatic transmissions.
What is the explanation for the above response?
To determine if there is strong evidence of a difference between the average fuel efficiency of cars with manual and automatic transmissions in terms of their average city mileage, we can conduct a two-sample t-test assuming unequal variances. The null hypothesis is that there is no difference in the average city mileage between the two types of transmissions, and the alternative hypothesis is that there is a difference.
The t-test statistic is calculated as follows:
t = (x1 - x2) / sqrt((s1^2/n1) + (s2^2/n2))
where x1 and x2 are the sample means, s1 and s2 are the sample standard deviations, and n1 and n2 are the sample sizes.
Plugging in the values from the given statistics, we get:
t = (16.12 - 19.85) / sqrt((3.85^2/26) + (4.51^2/26))
t = -3.31
Using a significance level of 0.05 and 50 degrees of freedom (approximated by n1+n2-2), the critical t-value is ±2.01.
Since the calculated t-value (-3.31) is less than the critical t-value, we can reject the null hypothesis and conclude that there is strong evidence of a difference between the average fuel efficiency of cars with manual and automatic transmissions in terms of their average city mileage.
Specifically, cars with manual transmissions have a significantly higher average city mileage than those with automatic transmissions.
Learn more about hypothesis testing at:
https://brainly.com/question/30588452
#SPJ1
Full Question:
Although part of your question is missing, you might be referring to this full question: See attached image.
Find the slope of a line perpendicular to the line whose equation is
4
�
−
2
�
=
20
4x−2y=20. Fully simplify your answer
the slope of the line perpendicular to 4x - 2y = 20 is -1/2, which can also be expressed as 1/(-2). This means that the line perpendicular to the given line has a slope that is the negative reciprocal of the slope of the given line.
How to solve the question?
To find the slope of a line perpendicular to the given line, we first need to find the slope of the given line. We can do this by putting the equation of the line in slope-intercept form, y = mx + b, where m is the slope and b is the y-intercept.
Starting with the equation of the line, 4x - 2y = 20, we can isolate y on one side by subtracting 4x from both sides and then dividing by -2. This gives us:
-2y = -4x + 20
y = 2x - 10
Comparing this equation with the slope-intercept form, we can see that the slope of the line is 2.
To find the slope of a line perpendicular to this line, we need to use the fact that the product of the slopes of two perpendicular lines is -1. That is, if the slope of the given line is m, then the slope of a line perpendicular to it is -1/m.
So, the slope of the line perpendicular to 4x - 2y = 20 is:
-1/2
To fully simplify this answer, we can write it as a fraction with a positive numerator by multiplying both the numerator and denominator by -1:
1/(-2)
Therefore, the slope of the line perpendicular to 4x - 2y = 20 is -1/2, which can also be expressed as 1/(-2). This means that the line perpendicular to the given line has a slope that is the negative reciprocal of the slope of the given line.
To know more about slope visit :-
https://brainly.com/question/16949303
#SPJ1
Need the answer to question 15
An equation in slope-intercept form for the perpendicular bisector of the segment with endpoints H (-3, 2) and K (7, -5) is y = -0.7x - 0.1.
How to determine an equation of this line?In Mathematics and Geometry, the point-slope form of a straight line can be calculated by using the following mathematical equation (formula):
y - y₁ = m(x - x₁)
Where:
m represent the slope.x and y represent the points.First of all, we would determine the slope of this line;
Slope (m) = (y₂ - y₁)/(x₂ - x₁)
Slope (m) = (-5 - 2)/(7 + 3)
Slope (m) = -7/10
Slope (m) = -0.7.
At data point (-3, 2) and a slope of -7/10, a linear equation in slope-intercept form for this line can be calculated by using the point-slope form as follows:
y - y₁ = m(x - x₁)
y - 2 = -7/10(x + 3)
y - 2 = -7x/10 - 21/10
y = -7x/10 - 21/10 + 2
y = -0.7x - 0.1
Read more on point-slope here: brainly.com/question/24907633
#SPJ1
A rectangular plece of paper with length 28 cm and width 14 cm has two semicircles cut out of it, as shown below. Find the area of the paper that remains. Use the value 3.14 for 1, and do not round your answer. G ✓6 14 cm 0 00 H cm X 2023 McGraw Hill LLC As Rights Reserve
The area of the paper remains is 238.14 cm².
What is area?Area is the region bounded by a plane shape.
To calculate the area of the paper that remains, we use the formula below.
Formula:
Area of the paper that remains(A) = Area of the rectangle(LW)-Area of the two semi circles [π(W/2)²]A = LW- [π(W/2)²]................ Equation 1Where:
L = Length of the rectangleW = Width of the rectangle = Diameter of the semi circleFrom the diagram in the question,
Given:
L = 28 cmW = 14 cmSubstitute these values into equation 1
A = (28×14)-[3.14(14/2)²A = 392-153.86A = 238.14 cm²Hence, the area is 238.14 cm².
Learn more about area here: https://brainly.com/question/28470545
#SPJ1
What is the volume of 1 hemisphere created by cutting this sphere exactly in half?
Answer:
B. 1152π cm^3
Step-by-step explanation:
I'm 99.9% sure that this is correct!
I'm really really sorry if it's not! please tell me if I'm wrong!
A pistol is accidently discharged vertically in the air. The height, h, of the bullet at time t seconds is recorded in the table below. Using an equation to model the data, find the height of the pistol after 10 seconds.
t (sec)
0
1
2
3
4
h (ft)
3
187
339
459
547
The height of the pistol after 10 seconds is 783 feet.
How to find the height of the pistol after 10 seconds.We can use the method of finite differences to find the degree of the polynomial function that models the data. The first differences are:
3, 18, 37, 56, 72
The second differences are:
15, 19, 19, 16
Since the second differences are constant, we know that the function that models the data is a quadratic function of the form:
h(t) = at² + bt + c
where a, b, and c are constants to be determined.
To find a, we can use the fact that the coefficient of t² in the quadratic function is equal to half of the second difference. Thus, we have:
a = 1/2(15) = 7.5
To find b, we can use the fact that the coefficient of t in the quadratic function is equal to the first difference minus twice the coefficient of t². Thus, we have:
b = 18 - 2(7.5) = 3
To find c, we can use the fact that the constant term in the quadratic function is equal to the value of h(0). Thus, we have:
c = h(0) = 3
Therefore, the equation that models the data is:
h(t) = 7.5t² + 3t + 3
To find the height of the pistol after 10 seconds, we can substitute t = 10 into the equation:
h(10) = 7.5(10)² + 3(10) + 3
h(10) = 750 + 30 + 3
h(10) = 783
Thus, the height of the pistol after 10 seconds is 783 feet.
Learn more about polynomial function at https://brainly.com/question/2833285
#SPJ1
in an integer overflow attack, an attacker changes the value of a variable to something outside the range that the programmer had intended by using an integer overflow.T/F
True. An integer overflow attack occurs when an attacker manipulates a variable in a way that causes it to exceed its maximum value or minimum value, leading to unexpected and potentially harmful behavior.
This can happen if a programmer fails to properly check and validate the input values that are being used in their code, allowing an attacker to inject a value that triggers an overflow.
As a result, the variable may be assigned a value that is outside the intended range, leading to unpredictable behavior and potentially causing the program to crash or execute unintended code. It is important for programmers to take steps to prevent integer overflow attacks, such as validating input values and using data types with sufficient capacity to hold the expected range of values.
This occurs when an arithmetic operation results in a value that is too large to be stored in the allocated memory, causing the value to wrap around and become smaller, or even negative. This can lead to unintended consequences in a program's behavior, which an attacker can exploit to gain unauthorized access or cause other security issues.
To learn more about integer overflow attack: brainly.com/question/30906850
#SPJ11
DUE TODAY, FIRST ANSWER GETS BRAINLIEST, 80 POINTS
The table represents a linear relationship.
x −1 0 1
y −3 1 5
Which equation represents the table?
A. y equals one fourth times x minus 2
B. y equals negative one fourth times x plus 1
C. y = −4x − 2
D. y = 4x + 1
Answer:
[tex]d) \ y=4x+1[/tex]
Step-by-step explanation:
I suppose the table looks like this:
[tex]\begin{array}{|r|r|} x & y \\ \cline{0-1}-1 & -3 \\0 & 1 \\ 1 & 5\end{array}[/tex]
Thus, we can select two points and apply the formula for the equation of a line given two points to derive an equation that represents the table.
[tex]y-y_1=(\frac{y_2-y_1}{x_2-x_1} )(x-x_1)[/tex]
I select this points:
[tex](x_1,y_1)= (0,1)\\(x_2,y_2)= (1,5)[/tex]
Now, we substitute this values in the previous equation:
[tex]y-(1)=(\frac{5-1}{1-0} )(x-0)\\\\y-1=4 x\\y=4x+1[/tex]
Therefore, the correct answer it's option D
What is the argument of z = StartFraction 1 Over 16 EndFraction minus StartFraction StartRoot 3 EndRoot Over 16 EndFraction i?
To find the argument of the complex number z = 1/16 - (sqrt(3)/16)i, we need to find the angle that the complex number forms with the positive real axis in the complex plane.
We can start by finding the magnitude of z, which is the distance between the origin and the point representing z in the complex plane:
|z| = sqrt( (1/16)^2 + (sqrt(3)/16)^2 )
= sqrt(1/256 + 3/256)
= sqrt(4/256)
= 1/4
Next, we can find the argument of z using the formula:
arg(z) = tan^(-1)(Im(z)/Re(z))
where Im(z) is the imaginary part of z, and Re(z) is the real part of z.
In this case, we have:
Re(z) = 1/16
Im(z) = -(sqrt(3)/16)
Therefore, we get:
arg(z) = tan^(-1)(Im(z)/Re(z))
= tan^(-1)(-(sqrt(3)/16)/(1/16))
= tan^(-1)(-sqrt(3))
= -60° (in degrees)
So, the argument of z is -60 degrees (or -π/3 radians).
Answer:
A
Step-by-step explanation:
From a horizontal distance of 80.0 m, the angle to the top of a flagpole is 18°. Calculate the height of the flagpole to the nearest tenth of a meter.
1. 24.7 meters
2. 76.1 meters
3. 26.0 meters
4. 25.3 meters
Answer:
The figure is omitted--please sketch it to confirm my answer.
Set your calculator to degree mode.
Let h be the height of the flagpole.
[tex] \tan(18) = \frac{h}{80} [/tex]
[tex]h = 80 \tan(18) = 25.994[/tex]
The height of the flagpole is approximately 26.0 meters. #3 is correct.
armer abe has a budget of $300 to build a rectangular pen to protect his rambunctious sheep. he decides that three sides of the pen will be constructed with chain-link fence, which costs only $1 per foot. farmer abe decides that the fourth side of the pen will be made with sturdier fence, which costs $5 per foot. find the dimensions of the largest area the pen can enclose.
Let x be the length of the pen and y be the width of the pen.
The total cost of the pen is given by:
Cost = 3x + 5y = 300
3x + 5y = 300
3x = 300 - 5y
x = (300 - 5y)/3
The area of the pen is given by:
Area = xy = (300 - 5y)/3 * y
James decided to share rocks collection. He gave 13 to Bill, 18 to lill, and 15 to mark. He had 32 left. How many rocks did he have to start with
James started with 78 rocks, as he gave away 46 rocks and had 32 rocks left.
The problem states that James gave away 13 rocks to Bill, 18 rocks to Lill, and 15 rocks to Mark. Therefore, the total number of rocks he gave away is the sum of these three amounts
13 + 18 + 15 = 46
This means that James had 46 fewer rocks after giving them away. The problem also states that he had 32 rocks left after giving some away. We can use this information to figure out how many rocks he started with by adding the number of rocks he had left to the number he gave away
46 + 32 = 78
Learn more about sum here
brainly.com/question/16740360
#SPJ4
Gemma can't type 350 words in five minutes how many words can she type in 3/4 of an hour
Answer:
Gemma can type 3150 words in 3/4hr
Step-by-step explanation:
350 word------>five minutes
x words------->3/4hr
convert 3/4hr-minutes
3/4×60=45minutes
x word =350×45/5
x word=3,150 words
the random variable x is the number of occurrences of an event over an interval of 10 minutes. it can be assumed the probability of an occurrence is the same in any two time periods of an equal length. it is known that the mean number of occurrences in 10 minutes is 5.3. the probability there are 8 occurrences in 10 minutes is . a. .0771 b. .0241 c. .1126 d. .9107
The probability of having 8 occurrences in 10 minutes is approximately 0.0241, which means the answer is (b).
The number of occurrences of an event in 10 minutes as a Poisson distribution with mean lambda = 5.3.
The probability of having 8 occurrences in 10 minutes is:
[tex]P(X = 8) = (e^(-5.3) * 5.3^8) / 8![/tex]
where X is the random variable representing the number of occurrences of the event in 10 minutes.
Using a calculator, we can evaluate this expression:
[tex]P(X = 8) = (e^(-5.3) * 5.3^8) / 8! ≈ 0.0241[/tex]
for such more questions on random variable
https://brainly.com/question/17217746
#SPJ11
HELP ASAPPPPPP Kendra is filling cone-shaped baskets, each with a height of 20 inches and a radius of 6 inches to use as
table decorations.
In terms of , what is the exact volume of each cone-shaped basket?
The exact volume of each cone-shaped basket is (240/π) cubic inches.
The formula for the volume of a cone is,
V = (1/3)πr^2h
Where,
V is the volume of the cone
π is the mathematical constant pi (approximately 3.14159)
r is the radius of the base of the cone
h is the height of the cone
In this case, the height of the cone-shaped basket is 20 inches and the radius is 6 inches. So, substituting these values into the formula,
V = (1/3)π(6^2)(20)
V = (1/3)π(36)(20)
V = (1/3)π(720)
V = (240/π) cubic inches
Hence, volume is (240/π) cubic inches.
To learn more about volume here:
https://brainly.com/question/29185751
#SPJ4
A boat is heading towards a lighthouse, whose beacon-light is 111 feet above the water. From point A, the boat’s crew measures the angle of elevation to the beacon, 6∘ before they draw closer. They measure the angle of elevation a second time from point B at some later time to be 13∘ . Find the distance from point A to point B. Round your answer to the nearest tenth of a foot if necessary.
The distance from point A to point B is approximately 926.4 feet.
What is angle?An angle is a measure of the amount of rotation between two lines, rays, or line segments that share a common endpoint, called the vertex. It is typically measured in degrees or radians.
According to question:Let's call the distance between point A and the lighthouse "x" and the distance between point B and the lighthouse "y". We want to find the value of "y".
From point A, the crew measures the angle of elevation to the lighthouse to be 6. This means that the angle formed between the horizontal line passing through point A and the line connecting point A to the top of the lighthouse is 6. We can draw a right triangle ABC where point A is the bottom left corner, point B is the bottom right corner, and point C is the top of the lighthouse. The line segment AC represents the height of the lighthouse (111 feet) and the line segment AB represents the distance between point A and the lighthouse (x).
Using trigonometry, we know that:
tan(6) = AC/AB
tan(6) = 111/x
x = 111/tan(6)
Now, from point B, the crew measures the angle of elevation to the lighthouse to be 13. This means that the angle formed between the horizontal line passing through point B and the line connecting point B to the top of the lighthouse is 13. We can draw a right triangle BCD where point B is the bottom left corner, point C is the top of the lighthouse (the same point as in the previous triangle), and point D is the bottom right corner. The line segment CD represents the height of the lighthouse (111 feet) and the line segment BD represents the distance between point B and the lighthouse (y).
Using trigonometry, we know that:
tan(13) = CD/BD
tan(13) = 111/y
y = 111/tan(13)
Therefore, the distance between point A and point B is:
y - x = 111/tan(13) - 111/tan(6)
Using a calculator, we get:
y - x ≈ 926.4 feet
Rounding to the nearest tenth of a foot, the distance from point A to point B is approximately 926.4 feet.
To know more about angle visit:
https://brainly.com/question/15277238
#SPJ1
A bag contains all the letters in the word MATHEMATICS. You draw two letters, one at a time. What is the probability of drawing a T, replacing it, then drawing a C?
2 x 10-7 is the probability of drawing a T, replacing it, then drawing a C.
What is Probability?
Probability is simply the chance that something will happen. Whenever the outcome of an event is uncertain, we can speak of the probability, or likelihood, of a particular outcome. Analyzing events according to their probabilities is called statistics.
There are 11 letters in MATHEMATICS which consist of 2 each of M, A and T and 1 each of H, E, I, C and S.
P(M on 1st choice) = 2/11 since there are 2 M's out of 11 letters
P(A on 2nd choice) = 2/10 since there are 2 A's out of 10 remaining letters
P(T on 3rd choice) = 2/9 since there are 2 T's out of 9 remaining letters
At this point there are 8 letters remaining which are all distinct so they must be chosen in the correct order
P(H on 4th choice) = 1/8
P(E on 5th choice) = 1/7
P(M on 6th choice) = 1/6
P(A on 7th choice) = 1/5
P(T on 8th choice) = 1/4
P(I on 9th choice) = 1/3
P(C on 10th choice) = 1/2
P(S on 11th choice) = 1/1
The probability of spelling the word correctly is the product of all the probabilities
P = 2*2*2 / 11! = 8 / 39916800 = 1 / 4989600 ~ 2 x 10-7
Learn more about Probabilty
brainly.com/question/15189739
#SPJ1
in a recent basketball game, shenille attempted only three-point shots and two-point shots. she was successful on 20% of her three-point shots and 30% of her two-point shots. shenille attempted 30 shots. how many points did she score?(2013 amc 12a
The probability of a score for a recent basketball game, shenille attempted only three-point shots and two-point shots is 18 points in the game. The answer is Option B.
Let x be the number of three-point shots and y be the number of two-point shots attempted by Shenille.
Then, we have:
x + y = 30 (total number of shots attempted)
Let's solve for one of the variables. For example, we can solve for x by subtracting y from both sides of the equation:
x = 30 - y
Now, we can express Shenille's points in terms of x and y:
Points = 3x + 2y
Substituting x = 30 - y, we get:
Points = 3(30 - y) + 2y
Points = 90 - y
Shenille's success rate for three-point shots is 20%, so the number of successful three-point shots she made is 0.2x. Similarly, the number of successful two-point shots she made is 0.3y.
Total points scored = (0.2x)(3) + (0.3y)(2)
Substituting x = 30 - y, we get:
Total points scored = (0.2(30 - y))(3) + (0.3y)(2
Total points scored = 18 + 0.4y
Now we need to maximize the total points scored by Shenille. Since she attempted 30 shots in total, we have:
y = 30 - x
Substituting this into the equation for total points, we get:
Total points scored = 18 + 0.4(30 - x)
Total points scored = 30 - 0.4x
This is a linear function, which is maximized at its endpoint. The maximum value of this function occurs at x = 0, which means Shenille attempted all two-point shots. In this case, y = 30, and the total points scored would be:
Total points scored = 0 + 0.3(30)(2)
Total points scored = 18
Learn more about probability at
https://brainly.com/question/30034780
#SPJ4
The question is -
In a recent basketball game, Shenille attempted only three-point shots and two-point shots. She was successful on 20% of her three-point shots and 30% of her two-point shots. Shenille attempted 30 shots. How many points did she score?
(A) 12
(B) 18
(C) 24
(D) 30
(E) 36
The volume of a cylinder is given by the formula v - pi^h, where r is the radius of the cylinder and h is the height.
Which expression represents the volume of this cylinder?
The expression that represents the volume of the cylinder is:
V = π[tex]r^{2}[/tex]h
What is cylinder?
A cylinder is a three-dimensional geometric shape that consists of two parallel circular bases of the same size and shape, and a curved lateral surface connecting the bases. The cylinder can be thought of as a tube or a can. The lateral surface of the cylinder is formed by "unrolling" a rectangular shape along the circumference of the base.
There appears to be a typographical error in the given formula for the volume of a cylinder. The correct formula is:
V = π[tex]r^{2}[/tex]h
where V is the volume of the cylinder, r is the radius of the circular base, and h is the height of the cylinder.
Using this formula, the expression that represents the volume of the cylinder is:
V = π[tex]r^{2}[/tex]h
To learn more about cylinder from the given link:
https://brainly.com/question/16134180
#SPJ1
convert this denary number 33 to a binary number
Answer: 100001
Step-by-step explanation: The trick for binary is that it only uses 1 & 0 for its number system. It goes by a system where you take 1 and multiply by 2, then you multiply 2 by 2, and so forth. So 33 has one 32, and one 1.
Answer questions 1 to 5.
The overall shapes of the distributions are symmetric and right skewed
The overall shape of the distributionIn statistics, a distribution is considered symmetric if the right and left halves of the distribution are mirror images of each other.
In this case, the overall shape of the distribution is symmetric
The mean absolute deviationFrom the dot plot, we have the following readings
0,3,4,5,5,6,6,7,7,8,8
Using a graphing tool, we have
Mean absolute deviation = 1.79
The overall shape of the distributionA right-skewed distribution is a type of probability distribution where the majority of the data values are clustered on the left side of the distribution, while a few large values extend out to the right side.
In this case, the overall shape of the distribution is right skewed
The true statement about the distribution
From the histogram, the true statement about the distribution is that the distribution has an outlier
The datapoints for the last question are not given
Read more about histogram at
https://brainly.com/question/25983327
#SPJ1
When Jose had cable TV, he had 120 channels. He switched to satellite TV, and now he has 300 channels. What is the percent increase in the number of channels Jose has to watch? Round to the nearest percent.
The percent increase in the number of channels Jose has to watch is 150%.
What is percent?To find the percent increase in the number of channels Jose has to watch, we need to find the difference between the new number of channels and the old number of channels, divide that by the old number of channels, and then multiply by 100 to get the percentage increase.
The difference between the new and old number of channels is 300 - 120 = 180.
Dividing that by the old number of channels and multiplying by 100 gives us:
(180/120) x 100% = 150%
Therefore, the percent increase in the number of channels Jose has to watch is 150%. This means that Jose now has 150% more channels to watch than he did before he switched to satellite TV.
Learn more about percent, here:
https://brainly.com/question/28840349\
#SPJ1
a plumber works twice as fast as his apprentice. after the plumber has worked alone for 3 hours, his apprentice joins him and working together they complete the job 4 hours later. how many hours would it have taken the plumber to do the entire job by himself?
If after the plumber has worked alone for 3 hours, his apprentice joins him and working together they complete the job 4 hours later, it would take the plumber 9 hours to do the entire job by himself.
Let's start by assigning some b to represent the rate at which each person works. Let's say that the plumber's rate is P (in units of job per hour) and the apprentice's rate is A (also in units of job per hour). Since the plumber works twice as fast as the apprentice, we can write:
P = 2A
Next, let's think about how much work can be done in a certain amount of time. If the plumber works alone for 3 hours, he completes 3P units of work. When the apprentice joins him, they work together for another 4 hours to complete the entire job, which is a total of 7 hours of work. So, the amount of work done in those 4 hours is:
4(P + A)
We also know that the total amount of work is 1 (since it's one complete job). Putting this all together, we can write an equation:
3P + 4(P + A) = 1
We can simplify this to:
7P + 4A = 1
But we also know that P = 2A, so we can substitute that in:
7(2A) + 4A = 1
Simplifying this, we get:
18A = 1
So, A = 1/18. This means that the apprentice can complete 1/18 of the job in one hour. Since the plumber works twice as fast, he can complete 2/18 of the job (or 1/9) in one hour.
To find out how long it would take the plumber to do the entire job by himself, we can use the formula:
Time = Work / Rate
The entire job is 1, and the plumber's rate is 1/9. So:
Time = 1 / (1/9) = 9 hours
To learn more about time and work click on,
https://brainly.com/question/15447600
#SPJ4
Please help fill in this chart
The point where marginal cost equals $15 is at the production of the 7th pizza. Therefore, the firm should produce 7 pizzas.
What is the firm's shut-down price?The firm's shut-down price is the price at which the firm is indifferent between producing and shutting down.
Using the table provided, we can calculate the missing values:
Variable Cost:
For 0 pizzas, the variable cost is $0.
For 1 pizza, the variable cost is $10.
For 2 pizzas, the variable cost is $12.
For 3 pizzas, the variable cost is $2.
For 4 pizzas, the variable cost is $1.
For 5 pizzas, the variable cost is $2.
For 6 pizzas, the variable cost is $3.
For 7 pizzas, the variable cost is $13.
For 8 pizzas, the variable cost is $16.
For 9 pizzas, the variable cost is $3.
For 10 pizzas, the variable cost is $6.
For 11 pizzas, the variable cost is $4.
Total Cost: To calculate the total cost, we simply add the variable cost and the fixed cost for each level of output. The fixed cost is not given in the table, so we cannot calculate the total cost.
Average Variable Cost:
To calculate the average variable cost, we divide the variable cost by the level of output. For example, the average variable cost for 1 pizza is $10/1 = $10.
Average Fixed Cost:To calculate the average fixed cost, we divide the fixed cost by the level of output.
Average Total Cost: To calculate the average total cost, we add the average variable cost and the average fixed cost. The firm should produce pizzas up to the point where marginal cost equals marginal revenue.
This is the point where the firm maximizes its profit. From the table, we can see that the marginal cost is increasing as output increases, while the marginal revenue remains constant at $15.
Learn more about variable cost at:
brainly.com/question/26373444
#SPJ1
pls pls help. just need the answer
The value of k is given as follows:
k = 5.
How to obtain the value of k?The function in the context of this problem is defined as follows:
f(x) = x³ + kx - 6.
We have that x - 1 is a factor of the function, meaning that, by the Factor Theorem:
f(1) = 0, x - 1 = 0 -> x = 1.
Hence, applying the numeric value, the value of k is obtained as follows:
1 + k - 6 = 0
k - 5 = 0
k = 5.
More can be learned about the Factor Theorem at https://brainly.com/question/24729294
#SPJ1
Last year, Big Bill's Department Store sold many pairs of shoes: 118,214 pairs of boots were sold; 37,092 more pairs of sandals than pairs of boots were sold; and 124,417 more pairs of sneakers than pairs of boots were sold.
How many pairs of shoes were sold last year?
Answer:279,723
Step-by-step explanation: 124,417+118,214+37,092=279,723