The ratio of circumference to diameter is independent of the radius.
Defining C=circumference, r=radius, D=diameter = 2r
Circumference = C = 2 π r = π D
=>
ratio of circumference / diameter
= C/D = π
Well if she has 2 whole watermelons and 1/3 of one that would be 2 1/3 and that would be the mixed number and for the inproper fraction it would be 1 4/3 because you want to take out 1 from the 2 1/3 and add it on to the 1 of the 1/3 making it 1 and 4/3 I hope this helps!
Answer:
A
Step-by-step explanation:
Given
p² - 16 = 0 ( add 16 to both sides )
p² = 16 ( take the square root of both sides )
p = ±
= ± 4
Thus solution is { - 4, 4 } → A
Answer:
Step-by-step explanation:
A = 2π +πrl
A - 2π = πrI subtract by 2π
(A- 2π)/(πr) = I divide by πr to isolate I
So we know we don't want to exceed 18 dollars.
So what we want to know is how many times can 2 dollars go into 18 dollars.
We would do

Now the answer is 9, so we know we can buy 9 pounds of apples without going over 18 dollars.