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3 years ago

The area of a circle having radius 14 cm is cm. Use * 22 7

Mathematics

1 answer:

DaniilM [7]3 years ago

6 0

Answer:

A=616cm²

Step-by-step explanation:

The question says to use

$\frac{22}{7}$

for pi, now that we know that we proceed like normal and do the formula like this.

$\frac{22}{7} {r}^{2} \\\frac{22}{7} \times 196 \\ = 616$

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Given that f(x) = 2x + 5 and g(x) = x − 7, solve for f(g(x)) when x = −3

dusya [7]

Answer:

-15

Step-by-step explanation:

start from the inside and go out.

So first plug in -3 into g(x)

g(-3) = -3 - 7 = -10

then plug in -10 into f(x)

f(-10) = 2(-10) + 5 = -15

so f(g(x)) = -15

5 0

3 years ago

Read 2 more answers

X/w = z/y². solve for y

jek_recluse [69]

Answer:

Step-by-step explanation:

We can simplify (cross multiply) to get $xy^2=wz$

Then we easily simplify to get $y=\sqrt{\frac{wz}{x}},\:y=-\sqrt{\frac{wz}{x}};\quad \:w\ne \:0,\:x\ne \:0$

8 0

2 years ago

5. Find the measure of the indicated angle.

Angelina_Jolie [31]

Answer:

180 - 26 = 154

10x + 8 + 9x - 25 = 154

19x - 17 = 154

19x = 171

x= 9

so » C is:98°

and » D is: 56°

5 0

2 years ago

I need help on answering this question

liubo4ka [24]

Answer:

<h2>The answer is 72°</h2>

Step-by-step explanation:

Since < RQS = < QLK and < RQS = x

< QLK is also x

< QLK and < KLM lie on a straight line

Angles on a straight line add up to 180°

To find x add < QLK and < KLM and equate them to 180°

That's

< QLK + < KLM = 180°

x + x - 36 = 180

2x = 180 - 36

2x = 144

Divide both sides by 2

We have the final answer as

Hope this helps you

7 0

3 years ago

¿Cuál es el valor de 0.1561 redondeado a la décima más cercana?

skelet666 [1.2K]

Answer:

A0.15

Step-by-step explanation:

7 0

2 years ago