Answer:
Exact area = 1568 - 392π cm^2.
Approximate area = 336.5 cm^2 to the nearest tenth.
Step-by-step explanation:
As there are 8 congruent circles arranged in 2 rows the length of the rectangle = 2 * the width.
2L + 2W = 168
L = 2W so:
4W + 2W = 168
W = 168/6
= 28cm
L = 56 cm.
Thus the area of the rectangle = 56 * 28 = 1568 cm^2.
The diameter of each circle = 28 / 2 = 14 cm so the radius = 7 cm.
Now the area of each circle = π r^2 = 49 π cm^2.
So the exact area of the shaded area = 1568 - 8 * 49 π.
= 1568 - 392 π cm^2.
Approximate area = 336.5 cm^2 to the nearest tenth.
I think you meant to write 
If so, then the answer is Choice A. {15, 16, 17, 18, ..., 50}
We simply list every natural number from 15 to 50, including both endpoints. The three dots mean "continue this pattern". This way we don't literally have to write out every single value (there are 50-15+1 = 36 values in this set).
Note: the set of natural numbers is {1,2,3,...} so a natural number is basically a whole number, but 0 is not included. Negative values aren't included either.
Answer:
Step-by-step explanation:
0.63 divided by 0.07
V = pi * r^2 * h
V = 470.48
h = 6.5
(pi) = 3.14
now sub
470.48 = 3.14 * r^2 * 6.5....now divide both sides by 6.5(pi)
470.48 / 6.5(3.14) = r^2
470.48 / 20.41 = r^2
23.05 = r^2.....take sqrt of both sides, eliminating ^2
sqrt 23.05 = r
4.8 = r <==== ur radius is 4.8 ft
