Zagorodniypolina5
04.04.2020 •
Mathematics
The top of a pie container is a circle. The radius of the pie is 8 inches and the radius of the container is 9 inches. What is the difference between the circumference of the container and the circumference of the pie in inches to the nearest tenth?
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Ответ:
The difference of the circumference of the pie container and pie is 6.3 inches.
Step-by-step explanation:
Given,
The radius of the pie container (R) = 9 in
The radius of the pie (r) = 8 in
To find the difference of the circumference of the pie container and pie.
Formula
The circumference of a circle = 2πr
Now,
The circumference of the pie container = 2×π×9 = 18π in
The circumference of the pie = 2×π×8 = 16π in
Hence,
The difference = 18π-16π = 2π = 6.28 = 6.3 inches (approx)
Ответ:
18
Step-by-step explanation:
-2 x^2y
Let x=-3 and y = -1
-2 (-3)^2 (-1)
-2 (9) (-1)
18