JeroMii
20.05.2021 •
Mathematics
A right pyramid has a square base of side 6cm. if it's stant height is 7cm, find it's surface area.
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Ответ:
3/5x - 5 + 5/5x - 4 = - 1
8/5x - 9 = - 1
8/5x = - 1+ 9
8/5x = 8
Multiply both sides by 5/8 (the reciprocal of the coefficient) to isolate variable X.
(5/8)(8/5x) = 8(5/8)
x = 40/8
x = 5