Solve the problem.A drill bit used for oil exploration removes rock from a region bounded by y = 4, y = 0.43x5 - 3, and the y-axis, where the units are feet. Find the volume the drill bit sweeps out by revolving about the y-axis.
A. 48 ft3
B. 22 ft3
C. 16 ft3
D. 67 ft3
Answer: A
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If r is a positive number and the point (x, y) is in the indicated quadrant, decide whether the given ratio is positive or negative.III, 
A. Positive B. Negative
Solve the problem.The inequality |T - 41.4| ? 7.1 describes the range of monthly average temperatures T in degrees Fahrenheit at a City X. (i) Solve the inequality. (ii) If the high and low monthly average temperatures satisfy equality, interpret the inequality.
A. 38.8 ? T ? 44; The monthly averages are always within 
B. -44 ? T ? 46.6; The monthly averages are always within 
C. 34.3 ? T ? 48.5; The monthly averages are always within 
D. -48.5 ? T ? 55.6; The monthly averages are always within 
Graph the ellipse.4(x - 1)2 + 16(y - 2)2 = 64 
A. 
B. 
C. 
D. 
Graph the hyperbola.(y + 3)2 - 9(x + 1)2 = 9
A. 
B. 
C. 
D. 