Question

The diameter of a circle is 6 miles. What is the circle's circumference?
Use 3.14 for ​𝜋.

________ miles

Answer 1

i figured it out

18.85 right ?

Answer 2

@SmokeyBrown

Answer 3

9 times 3.14

Answer 4

Yup, that's right. The equation for a circle's circumfrence is 2r*pi, or d*pi, where r is the radius and d is the diameter. 6*3.14 is about 18.85, so you're correct

Answer 5

Wait, isn’t it pie r square?

Answer 6

Oh, that's for the area of a circle, silvernight

Answer 7

Oh I see. Ok

Answer 8

Multiply.
(4 ×10^8) (2 × 10^-10)

A. 8 x 10^2

B. 8 x 10^-3

C. 8 x 10^-2

D. 8 x 10^-4

Answer 9

i supposed it's C

Answer 10

is that right smoke to you

Answer 11

Yeah, I agree

Answer 12

Simplify.

(-27)^1/3

__________

Answer 13

I think that'd be -3. Because -3*-3*-3 is -27

Answer 14

https://i.imgur.com/ytNf9kY.jpg

Answer 15

well, 1-2 is -1 and -9- (-9) is 0
So, the difference between the two coordinates is (-1,0)

Answer 16

If u = ⟨7, 3⟩, what is the magnitude of -8u?

Simplify any radicals.

Answer 17

Well, -8*7 is -56, and -8*3 is -24
So the product would be (-56,-24)