All categories

3 years ago

HELP ASAP THIS IS STRESSING ME OUT!

1 answer:

6 0

The surface area of a right cylinder is the sum of the areas of the lateral face and the circular bases. The lateral face is really just a rectangle with the same height as the cylinder and a length equal to the circumference of the circular base.

If the radius of the base is $r$ and the height is $h$ , then the surface area of the cylinder is

$A=2\pi r^2+2\pi rh$

You're given that the area is $96\pi$ and the radius is $4$ , so you have

$96\pi=2\pi\times4^2+2\pi\times4h\implies 12=4+h\implies h=8$

You might be interested in

What is the y-intercept of the linear regression equation ?

lubasha [3.4K]

To find the y-intercept of the equation, we will put 0 in for x, and find y.

So, y = 14.2 - 3.9(0)

y = 14.2

6 0

3 years ago

Destiny can run one-eighth of a mile in three-quarters of a minute, and she can walk one-quarter of a mile in 4 minutes. How man

yarga [219]

Answer:

a) Destiny can run 1 mile is 6 minutes.

b) Destiny can walk back 1 mile is 16 minutes.

Step-by-step explanation:

The running rate of Destiny is

$(\frac{1}{8}) \textrm{mile in} (\frac{3}{4}) \textrm{minutes}$

So, she runs 1 mile in $8 \times (\frac{3}{4} )\textrm{minutes}$

= 6 minutes

Hence, Destiny can run 1 mile is 6 minutes.

The walking rate of Destiny is

$(\frac{1}{4}) \textrm{mile in} 4 \textrm{minutes}$

So, she walks 1 mile in $4 \times (4 )\textrm{minutes}$

= 16 minutes

Hence, Destiny can walk back 1 mile is 16 minutes.

4 0

2 years ago

If each customer takes 3 minutes to check out, what is the probability that it will take more than 9 minutes for all the custome

AnnyKZ [126]

Using a discrete probability distribution, it is found that there is a 0.15 = 15% probability that it will take more than 9 minutes for all the customers currently in line to check out.

<h3>What is the discrete probability distribution?</h3>

Researching the problem on the internet, it is found that the distribution for the number of customers in line at the store is given by:

P(X = 0) = 0.2;

P(X = 1) = 0.15;

P(X = 2) = 0.30;

P(X = 3) = 0.20;

P(X = 4) = 0.10;

P(X = 5) = 0.05;

Hence, since each customer takes 3 minutes to check out, the probability that it will take more than 9 minutes for all the customers currently in line to check out is the probability that there are more than 3 customers, hence:

P(X > 3) = P(X = 4) + P(X = 5) = 0.10 + 0.05 = 0.15.

0.15 = 15% probability that it will take more than 9 minutes for all the customers currently in line to check out.

More can be learned about a discrete probability distribution at brainly.com/question/24855677

7 0

1 year ago

Can somebody help me pleasse?

Elenna [48]

yes! what do you need?

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

Three consecutive even integers whose sum is -48

Salsk061 [2.6K]

Three consecutive even integers whose sum is -48

6 0

3 years ago