Decide if the number is rational or irrational.
A. Rational
B. Irrational
Answer: B
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Find the vertex of the parabola.f(x) = -5x2 + 30x - 43
A. (2, 3) B. (3, 2) C. (-3, 2) D. (-3, -2)
Solve the problem.Find the centroid of the half-sphere formed by rotating the first-quadrant area under the curve 
(measurements in inches) about the y-axis.
A. 4.5 in. above the center of the base B. 3.75 in. above the center of the base C. 3 in. above the center of the base D. 2.25 in. above the center of the base
Use the shell method to find the volume of the solid generated by revolving the region bounded by the given curves and lines about the x-axis.y = 7x2, y = 7
A. 
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B. 
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C. 
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D. 
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Find the volume of a rectangular box with length L, width W, and height H.L = 5 yd, W = 6 yd, H = 2 yd
A. 50 yd3 B. 24 yd3 C. 180 yd3 D. 60 yd3