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3 years ago

What is the surface area of the cylinder in terms of pi? The diagram is not drawn to scale.

Mathematics

1 answer:

bearhunter [10]3 years ago

3 0

Surface Area = 2πr² + 2πrh

Surface Area = 2π(7)² + 2π(7)(15) = 308π in²²

Answer: 308π in²

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Simplify the expression.

spayn [35]

Answer:

C. $\huge\frac{1}{3x {y}^{2} {z}^{4}}$

Step-by-step explanation:

$(9 {x}^{2} {y}^{4} {z}^{8} )^{ - \frac{1}{2} } \\ \\ = ( {3}^{2} {x}^{2} {y}^{4} {z}^{8} )^{ - \frac{1}{2} } \\ \\ = \frac{1}{( {3}^{2} {x}^{2} {y}^{4} {z}^{8} )^{ \frac{1}{2} }} \\ \\ = \frac{1}{(3x {y}^{2} {z}^{4})^{2 \times \frac{1}{2} } } \\ \\ = \frac{1}{3x {y}^{2} {z}^{4}} \\ \\ \red{ \bold{ \therefore \: (9 {x}^{2} {y}^{4} {z}^{8} )^{ - \frac{1}{2} } = \frac{1}{3x {y}^{2} {z}^{4}} }}\\$

7 0

3 years ago

If a punch bottle says 20% fruit juice,and it is a 200 milliliter bottle, how many milliliters of fruit juice is in the bottle?

padilas [110]

Answer:

There are 40 milliliters of fruit juice in the bottle

Step-by-step explanation:

we know taht

20%=20/100=0.20

To find out the milliliters of fruit juice, multiply the volume of the bottle by the percentage of fruit juice in decimal form

$200(0.20)=40\ ml$

therefore

There are 40 milliliters of fruit juice in the bottle

8 0

3 years ago

Which polynomial is a perfect square trinomal x^2 -6x +9 b) x^2 -2x +4 c) x^2 +5x +10 d) x^2 +4x +16

cestrela7 [59]

I hope this helps you

3 0

2 years ago

Alex has 84 quarters and nickels worth a total of $17.80.

Hunter-Best [27]

The equation which can be used to find the number of quarters and nickels is; n + q = 84, 0.05n + 0.25q = 17.80.

<h3>Quarters and nickels</h3>

Total coins = 84
Total value = $17.80

let

Number of quarters = q
Number of nickels = n

n + q = 84

0.05n + 0.25q = 17.80

From equation (1)

n = 84 - q

Substitute into (2)

0.05n + 0.25q = 17.80

0.05(84 - q) + 0.25q = 17.80

4.2 - 0.05q + 0.25q = 17.80

- 0.05q + 0.25q = 17.80 - 4.2

0.20q = 13.60

q = 13.60 / 0.20

q = 68

Substitute q = 68 into

n + q = 84

n + 68 = 84

n = 84 - 68

n = 16

Therefore, the number of quarters and nickels are 68 and 16 respectively.

Learn more about quarters and nickels:

brainly.com/question/17127685

#SPJ1

6 0

2 years ago

Last year,Jim opened an investment account with $7400. At the end of the year, the amount in account had increased by 26.5%. How

KonstantinChe [14]

Step-by-step explanation:

I=prt

I=7400×(26.5/100)×1

I=$1961

total money 7400+1962= $9361

7 0

3 years ago