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kingoc321
17.04.2020 •
Mathematics
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Ответ:
Given:
The length of the entire rectangle is 10x + 7.
The width of the entire rectangle is 6x.
The length of the unshaded rectangle is 4x - 5.
The width of the unshaded rectangle is 2x.
We need to determine the area of the shaded region of the rectangle.
Area of the entire rectangle:
The area of the entire rectangle can be determined using the formula,
Substituting the values, we have;
Thus, the area of the entire rectangle is 60x² + 42x
Area of the unshaded rectangle:
The area of the unshaded rectangle can be determined using the formula,
Substituting the values, we have;
Thus, the area of the unshaded rectangle is 8x² - 10x
Area of the shaded region of the rectangle:
The area of the shaded region of the rectangle can be determined by subtracting the area of the entire rectangle by the area of the unshaded rectangle.
Thus, we have;
Thus, we have;
Thus, the area of the shaded region of the rectangle is 52x(x + 1)
Ответ:
576 cm^3
Step-by-step explanation:
Express this volume formula as V = π r^2 h, where the " ^ " symbol indicates exponentiation. Substitute 4 for r (this is half the diameter), 12 cm for h, and 3 for π: V = 3*(4)^2*12 cm^3, or V = 576 cm^3.