kealalac1
16.12.2019 •
Mathematics
Let f(x) = 3x2 + x − 3 and g(x) = x2 − 5x + 1. find f(x) − g(x).
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Ответ:
f(x) - g(x) = 3x² + x - 3 - x² + 5x - 1
f(x) - g(x) = 3x² - x² + x + 5x - 3 - 1
f(x) - g(x) = 2x² + 6x - 4
Ответ:
339π in³
Step-by-step explanation:
The formulas for the volumes of these shapes are ...
cylinder: V = πr²hsphere: V = 4/3πr³The radii of the given figures are half their respective diameters: 5 in for the cylinder and 3 in for the sphere. The desired volume is the difference between the volume of the cylinder and that of the sphere:
water volume = cylinder volume - sphere volume
= π(5²)(15) - (4/3)π(3³)
= π(375 -36) = 339π . . . in³