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2 years ago

What is the surface area of the cylinder in terms of pi Radius 8in Height 20in

Mathematics

1 answer:

Aliun [14]2 years ago

7 0

The surface area would be 4021.24 since

SA = 2πr²h
SA= π(8²)(20)
= 4021.23859659 round up to 4021.24

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-2(2x+3)=-(x+1)-2 whats x

AysviL [449]

Answer:

x=-1

Step-by-step explanation:

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3 years ago

What is the the slope that passes through the points (4,-7) and (9,1)

bulgar [2K]

Answer:

8/5

Step-by-step explanation:

We can use the formula for finding slope for this: $\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

$\frac{1 - (-7)}{9 - 4}$

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The answer would be 8/5

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2 years ago

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2 years ago

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Julli [10]

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Step-by-step explanation:

Hi, to answer this question we have to multiply the amount of the cash advance (700) by the APR for cash advances in decimal form (divided by 100):

700 x (24/100) = $168 (a year)

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3 years ago

Please help with this

slava [35]

Answer:

D) x= $\frac{-2+-2\sqrt{7} }{3}$

Step-by-step explanation:

The quadratic formula is : $\frac{-b+-\sqrt{b^2-4ac} }{2a}$

A in terms of this question=9

B in terms of the question is 12

C in terms of the question is -24.

This question is an example of a quadratic equation. To work this out you may first need a calculator. The first step is to substitute the values of a,b and c into the formula. So once substituted the formula of $\frac{-b+-\sqrt{b^2-4ac} }{2a}$ becomes $\frac{(-12)+-\sqrt{(12)^2-4*(9)*(-24)} }{2(9)}$ . Although when written in a calculator there will not be a plus and minus button and so you would have to do this separately.

However when substituting the values it would be best practice to put them in brackets.

1) Substitute the values into the equation for +.

$\frac{(-12)+\sqrt{(12)^2-4*(9)*(-24)} }{2(9)}=\frac{-2+2\sqrt{7} }{3} /1.097167541$

2) Substitute the values into the equation for -.

$\frac{(-12)-\sqrt{(12)^2-4*(9)*(-24)} }{2(9)}=\frac{-2+2\sqrt{7} }{3} /-2.430500874$

8 0

2 years ago