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3 years ago

Use the formula to find the area use 3.14 for pie the circle is 15 cm

1 answer:

5 0

Hey there!

$A= \pi r^2$

By using this formula, we plug it in.

Your correct answer would be . . .

$A$ ≈ $\boxed{\boxed{706.86}}$

Hope this helps.
~Jurgen

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oksian1 [2.3K]

Given :-

a² - 2a - b² = 0
2b + 2ab = 0

To find :-

Value of a and b .

Solution :-

Taking second equation:-

2b + 2ab = 0
2b ( 1 + a ) = 0
2b = 0 or (1+a) = 0
b = 0 , a = -1

Substitute in first equation :-

a² - 2a - b² = 0

When b = 0 ,

a² - 2a - 0² = 0
a² - a = 0
a( a -1) =0
a = 0 , 1

When a = -1 ,

(-1)² - 2*(-1) - b² = 0
1 + 2 - b² = 0
b² = 3
b = ±√3

Answer :-

a = 0,1 ; b = 0
a = -1 , b = ±√3

8 0

3 years ago

I’m sorry but need help

arsen [322]

These are pretty easy once you get the concept.

think of random letter (x) as the term y, so in the case of p(x)=-3+4x, its just asking what is y when x equals all those values.

so p(-2) = -3 + 4(-2), since its asking to plug in -2 for x, which equals -11

p(0) = -3 + 4(0)

= -3

p(5) = -3 + 4(5)

= 17

4 0

3 years ago

Please help me answer question #4 on this document! Thank you

Serjik [45]

The image is not visible

7 0

3 years ago

I think its identity but I'm not sure

victus00 [196]

Answer: C, you are correct

Step-by-step explanation:

7 0

3 years ago

A skincare company posts advertisements via social media. The probability model describes the number of times the company may po

scoundrel [369]

Answer:

2.06

Step-by-step explanation:

the answer is the sum of all of the products of posts made by the P(X) under it.

also... I got it right on my quiz

7 0

3 years ago

Read 2 more answers