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VladimirAG [237]

3 years ago

14

Find the diameter of a cone that has a volume of 56.52 cubic inches and a height of 6 inches. Use 3.14 for pi. a. 3 inches. b. 6

inches. c. 9 inches. d. 12 inches

1 answer:

sergejj [24]3 years ago

3 0

Volume of cone = (1/3)pi*r²h

56.52 = (1/3)*3.14*r²*6

56.52/(2*3.14) = r²

9 = r²

r² = 9

r = √9

r = 3

Diameter = 2*r = 2*3 = 6 inches. b.

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Point T is at (-3, 8). What are the coordinates of T' after R(y-axis) o R(x-axis)?

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Given:

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The coordinates of T' after $R(y-axis)\circ R(x-axis)$ .

Solution:

We know that, $R(y-axis)\circ R(x-axis)$ means the figure reflected across the x-axis then reflected across y-axis.

If a figure reflected across x-axis, then

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