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3 years ago

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Find the circumference of a circle whose area is 60 pi cm 2 /. A2 square root15 pi cm B.4 C.30 D.900 Please select the best answ

er from the choices provided A B C D

1 answer:

krok68 [10]3 years ago

6 0

Answer:

i think its 48.66cm

Step-by-step explanation:

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Pls help me with this question it wold be great help its circumference

Ivan

Answer:

$C = 9.42\ m$

Step-by-step explanation:

The formula for the circumference of a circle with the diameter is:

$C = \pi d$

Since the diameter is 3m, solve for $C$ :

$C = \pi d\\C = \pi3\\C = (3.14) \times 3\\C = 9.42$

6 0

2 years ago

Read 2 more answers

CosA.cos2A.cos4A=sin8A/8sinA

alexgriva [62]

I assume you're supposed to establish the identity,

cos(A) cos(2A) cos(4A) = 1/8 sin(8A) / sin(A)

Recall the double angle identity for sine:

sin(2<em>x</em>) = 2 sin(<em>x</em>) cos(<em>x</em>)

Then you have

sin(8A) = 2 sin(4A) cos(4A)

sin(8A) = 4 sin(2A) cos(2A) cos(4A)

sin(8A) = 8 sin(A) cos(A) cos(2A) cos(4A)

==> sin(8A)/(8 sin(A)) = cos(A) cos(2A) cos(4A)

as required.

3 0

3 years ago

On tuesday bill bought nine posters. On wednesday half of all the posters that he had were destroyed. On thursday there were onl

Anettt [7]

(x+9)/2+=24
*2 I *2
x+9=48
-9 -9
x=39

4 0

3 years ago

5/8 divided by 6 5/6 in fractional form. ➗✏️❓⁉️

ser-zykov [4K]

Answer:

15/164

Step-by-step explanation:

5/8 ÷ 6 5/6 = 15 / 164

3 0

3 years ago

Read 2 more answers

[ INDICES]- Simplify :

just olya [345]

Answer is in the attachment.

note:

make a slight change in question 1;

7 0

3 years ago

Read 2 more answers