Ask question

Ask question

All categories

2 years ago

14

A can in the shape of a cylinder has a diameter of 8 inches and a height of 10 inches. Which measurement is closest to the total

surface area in square inches?

1 answer:

Alex2 years ago

6 0

Answer:

Step-by-step explanation:

To find the total surface area of the cylinder

We get

S.A=2πr^2+2πrh

S.A=2×3.142×4×4+2×3.142×4×10

S. A=100.544inches sq+251.36inches sq

S. A=351.904inches sq

You might be interested in

The weekly salaries of sociologists in the United States are normally distributed and have a known population standard deviation

Lostsunrise [7]

Answer:

$ME =z_{\alpha/2} \frac{\sigma}{\sqrt{n}}$

The confidence level is 0.98 and the significance is $\alpha=1-0.98 =0.02$ and $\alpha/2 =0.01$ and the critical value using the table is:

$z_{\alpha/2}= 2.326$

And replacing we got:

$ME=2.326 \frac{425}{\sqrt{22}}= 210.760\ approx 210.76$

Step-by-step explanation:

For this case we have the following info given:

$\sigma = 425$ represent the population deviation

$n =22$ the sample size

$\bar X =1520$ represent the sample mean

We want to find the margin of error for the confidence interval for the population mean and we know that is given by:

$ME =z_{\alpha/2} \frac{\sigma}{\sqrt{n}}$

The confidence level is 0.98 and the significance is $\alpha=1-0.98 =0.02$ and $\alpha/2 =0.01$ and the critical value using the table is:

$z_{\alpha/2}= 2.326$

And replacing we got:

$ME=2.326 \frac{425}{\sqrt{22}}= 210.760\ approx 210.76$

3 0

2 years ago

ILL GIVE BRAINLIEST HELP PLEASE!!! I only need the last question answered the formula is y=1.56x+1.29

denis-greek [22]

Answer:

i got 32 weeks??

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

When Jeremy made 8 black and white copies and 2 color copies at a copy shop, the cost was $1.20. When he made 10 black and white

marshall27 [118]

I think it’s A and it’s B at the most but still...A

5 0

2 years ago

Which of the following statements best describes the solution to the problem below?

ZanzabumX [31]

Answer:

C

Step-by-step explanation:

Using rule of negatives and positives:
The rules for multiplication and division are simple: If both numbers are positive, the result is positive. If both numbers are negative, the result is positive. If one number is positive and the other is negative, the result is negative.

This is why C is the correct statement

4 0

1 year ago

The x-coordinate of the vertex of the equation y = 2x2 − 4x + 12 The x-coordinate of the vertex of the equation y = 4x2 + 8x + 3

dolphi86 [110]

So since the vertex falls onto the axis of symmetry, we can just solve for that to get the x-coordinate of both equations. The equation for the axis of symmetry is $x=\frac{-b}{2a}$ , with b = x coefficient and a = x^2 coefficient. Our equations can be solved as such:

y = 2x^2 − 4x + 12: $x=\frac{4}{2*2}=\frac{4}{4}=1$

y = 4x^2 + 8x + 3: $x=\frac{-8}{2*4}=\frac{-8}{8}=-1$

In short, the vertex x-coordinate's of y = 2x^2 − 4x + 12 is 1 while the vertex's x-coordinate of y = 4x^2 + 8x + 3 is -1.

6 0

2 years ago