3 years ago

Find the value of the circumference of a circle with the given diameter.

1 answer:

7 0

C= 2πr, and 2r = D (diameter). So, you can also use this equation: C =Dπ
Since we know the diameter, and we know the value of π, we can easily calculate the value of circumference.
C = Dπ
C = 3.21π
This means that the correct answer is B. 3.21 pi

You might be interested in

The cost of a car is $15,570. You plan to make a down payment of $1,500, and a monthly payment of $388.08 for 60 months.

sergiy2304 [10]

1. 15.570-1500= 14070. Yes it is B

7 0

3 years ago

I'm confused like in #1 the positive is five but what do I put for the negative

yuradex [85]

You found $5, so it's positive. You don't put anything in the negative, because you aren't losing anything.

4 0

3 years ago

Can anyone help? I’ll give Brainly.. thank you

Arada [10]

Answer: 50

Explanation;

3 0

2 years ago

If x-2y=10 and x≠0, what is the value of 2x/y+5

VladimirAG [237]

Answer: 4

Step-by-step explanation:

x - 2y =10

x = 10 + 2y

$\frac{2x)}{y + 5}$

$\frac{2(10+2y)}{y+5}$

$\frac{20+4y}{y+5}$

$\frac{4(5+y)}{y+5}$ ... cancel like terms (y + 5)

= 4

5 0

2 years ago

The diameter of a sphere is 8 centimeters. What is the volume of the sphere? Use 3.14 for pi. Enter your answer, as a decimal, i

Angelina_Jolie [31]

The volume of a sphere is given by the equation $V= \frac{4}{3} \pi r^3$ , where r is the radius.

We are given the diameter of the sphere, but recall that the diameter is twice the radius: $d=2r$ . So the radius is half of the diameter: $r= \frac{1}{2}d$ .

Half of 8 cm is 4 cm.

We substitute this for r in the equation and we use 3.14 for π.

$V= \frac{4}{3}(3.14)(4)^3= \frac{(4^4)(3.14)}{3}=267.9 \ cm^3$

4 0

2 years ago

Read 2 more answers