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3 years ago

Find the surface area of the cylinder

Mathematics

1 answer:

scoundrel [369]3 years ago

3 0

Answer:

Step-by-step explanation:

Surface Area:

A=2πrh+2πr^2

A=(2 * 3.143 * 8 * 8) + (2 * 3.143 *(8)^2)

A=402.286 + (2 * 3.143 * 64)

A=402.286 + 402.286

A=804.571 in.

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Frank starts off with $ 120 to spend on his shirts and shoes. Frank buys 3 shirts for $15.50 each. Shoes cost $32.50 each per pa

evablogger [386]

Shirts: 3 x 15.50 = 46.50

120 - 46.50 = 73.50 left to spend on shoes

73.50/32.50(cost per pair) = 2.26....so he was able to purchase 2 pairs of shoes.

4 0

3 years ago

The vertex of this parabola is at (-1,-3) which of the following could be its equation

Gnesinka [82]

Since these are parabolas with y being squared, the standard form of such a parabola with vertex at (h, k) is

<span>x = a(y - k)^2 + h </span>

<span>There are no steps. Just look at what is inside the parentheses and compare it to (y - k) with k = -3. </span>
<span>Then look at what is added and compare it to h = -1. </span>

<span>For instance, A has (y + 1) in parentheses. So k = -1. And it has -3 added, so h = -3. That would be a vertex at (-3, -1).</span>

6 0

3 years ago

Read 2 more answers

Matt and Ryan are playing an exciting round of Rock Paper Scissors: The Collectible Card Game. Matt is convinced that Rock can b

kiruha [24]

Using the hypergeometric distribution, there is a 0.1786 = 17.86% probability that Ryan beats Matt in a landslide by choosing 3 Paper cards in a row.

<h3>What is the hypergeometric distribution formula?</h3>

The formula is:

$P(X = x) = h(x,N,n,k) = \frac{C_{k,x}C_{N-k,n-x}}{C_{N,n}}$

$C_{n,x} = \frac{n!}{x!(n-x)!}$

The parameters are:

x is the number of successes.

N is the size of the population.

n is the size of the sample.

k is the total number of desired outcomes.

For this problem, we have that Ryan will win if he takes 3 Paper cards from a set of 8(5 paper and 3 scissors), hence the parameters are given as follows:

N = 8, k = 5, n = 3, x = 3.

Hence the probability is given by:

$P(X = x) = h(x,N,n,k) = \frac{C_{k,x}C_{N-k,n-x}}{C_{N,n}}$

$P(X = 3) = h(3,8,3,5) = \frac{C_{5,3}C_{3,0}}{C_{8,3}} = 0.1786$

0.1786 = 17.86% probability that Ryan beats Matt in a landslide by choosing 3 Paper cards in a row.

More can be learned about the hypergeometric distribution at brainly.com/question/24826394

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1 year ago

What is 725000000 in scientific noation

Dominik [7]

Answer:

$7.25$ x $10^8$

Step-by-step explanation:

You move the decimal to the right of the first non-zero digit. Count the spaces you moved it, remembering the LARD rule, and that is the power of ten.

8 0

3 years ago

Read 2 more answers

What is the derivative of 3x^3 + 2

Gnesinka [82]

The correct answer is 9x^2

Hope this helped :)

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3 years ago