2 years ago

Help me answer question 8a and b, and I’ll give u 10 points lol

Mathematics

1 answer:

iren [92.7K]2 years ago

3 0

Answer:

Step-by-step explanation:

Find h when v = 20 and r = 3

Putting values in the formula

20 = (3.14)(3)2h

20 = (3.14)(9)h

20 = 28.26h

20/28.26 = h

R when v = 100 and h = 5

100 = (3.14)r2(5)

100/5 = 3.14r2

20 = 3.14r2

20/3.14 = r2

6.36 = r2

Square root on both sides

2.52 = r

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Marizza181 [45]

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2 years ago

Two containers designed to hold water are side by side, both in the shape of a cylinder. Container A has a radius of 12 feet and

Karolina [17]

Answer:

Step-by-step explanation:

Container A = 75.36 x 17 = 1,281.12

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2 years ago

-5 + x =3 solve for x PLEASE HELP ME ASAP

hram777 [196]

Answer:

x = 8

Step-by-step explanation:

Step 1: Write equation

-5 + x = 3

Step 2: Solve for x

Add 5 to both sides: x = 8

Step 3: Check

Plug in x to verify it's a solution.

-5 + 8 = 3

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2 years ago

PLEASE HELP A.12.5 B.15.7 C.16 D.16.5

Mashutka [201]

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2 years ago

Use law of sines or law of cosines to find the length of side AB Please show work !!

scoray [572]

Answer:

$AB = 11.3$

Step-by-step explanation:

Given

The attached triangle

Required

Length AB

To do this, we make use of sine law which is represented as:

$\frac{a}{\sin(a)} = \frac{b}{\sin(b)} = \frac{c}{\sin(c)}$

So, we have:

$\frac{15}{\sin(70)} = \frac{AB}{\sin(45)}$

Make AB the subject

$AB = \frac{15}{\sin(70)} * \sin(45)$

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$AB = 11.3$

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3 years ago