Answer:
Circumference of circle = 18π inches
Step-by-step explanation:
Given the following data;
Area of circle = 81π in²
To find the circumference;
First of all, we would find the radius of the circle using the area of circle formula.
Area of circle = πr²
Substituting into the formula, we have:
81π = πr²
Dividing both sides by π, we have;
81 = r²
Taking the square root of both sides, we have;
r = 9 inches
Now, to find the circumference of the circle;
Circumference of circle = 2πr
Circumference of circle = 2*π*9
Circumference of circle = 18π inches.
Uhhhh i cant answer this without details
Answer:
b
Step-by-step explanation:
This may be wrong, but from my math:
if you divide 8019 by 3 ,
you end up with 2,703.
So altogether they collected 2,703 bottle caps total.
estimate the the nearest half....
5/8....it is closer to 4/8(which is 1/2) then it is to 8/8(which is 1)...so we will round 5/8 to 1/2
8/9....it is closer to 9/9 (which is 1) then it is to 4.5/9 (which is half)...so we will round 8/9 to 1
" the product " means multiply
so 1 * 1/2 = 1/2 (or 0.50) <== estimate
actual : 5/8 * 8/9 = 5/9 (or 0.55) <== actual
