Write an equation to describe the variation. Use k for the constant of proportionality.p varies jointly as q and r.
A. p = k + q + r
B. pqr = k
C. p + q + r = k
D. p = kqr
Answer: D
Mathematics
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Graph the polar equation for ? in [0°, 360°).r = 8 cos 7?
A. 
B. 
C. 
D. 
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Find the volume specified. Use 3.14 as the approximate value of ?, and round your answer to the nearest tenth.Find the volume of a tent having the shape of a rectangular solid of length 11 ft, width 14 ft, and height 5 ft topped by a rectangular pyramid of the same width and length with height 4 ft.
A. 975.3 ft3 B. 1540.0 ft3 C. 205.3 ft3 D. 410.6 ft3
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Convert the first rational expression into an equivalent one that has the indicated denominator.
, 
A. 
B. 
C. 
D. 
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Solve.x2 + y2 = 36x2 - y2 = 36
A. (0, -6) B. (6, 0) C. (6, 0) and (-6, 0) D. (0, 6) and (0, -6)
Mathematics