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kyzerlinda
30.10.2020 •
Mathematics
A circular pizza with diameter of 10 inches. The pizza is in a square box with side lengths of 14 inches. In square inches, how much of the box is empty?
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Ответ:
117.45 in²
Step-by-step explanation:
Given that:
Diameter of circular pizza = 10 inches
Length of square box = 14 inches
Area of a square = a²
Where a = side length
Area of square = 14² = 196 in²
Area of circle :
pi * r²
Pi = 3.142 ; r = d/2 = 10/2 = 5 inches
Area of circle = 3.142 * 5² = 78.55 in²
Amount of the box which is empty :
196 in² - 78.55 in² = 117.45 in²
Ответ:
3 - 6 (z-2)^3
If z = -2, we have:
3 -6 ( -2 -2 )^3
3-6 (-4)^3
3-6*(-64)
3+384
387
The answer is 387.