Find an equation of variation in which y varies inversely as x and the following is true.y = 39, when x = 21
A. y = 
B. y = 819x
C. y = 
D. y = 1.86x
Answer: A
Mathematics
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Find the volume.a cube with side 5.5 ft
A. 16.5 ft3 B. 30.25 ft3 C. 166.375 ft3 D. 60.5 ft3
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Determine the specific solutions (if any) to the equation on the interval [0, 2?).cos ? + 2 cos ? sin ? = 0
A. 
, 
B. 
, 
, 
, 
C. 0, 
, 
, 
D. 
, 
, 2?
Mathematics
Add or subtract as indicated.(11x9 + 3x7 - 3x3 + 4) - (3x9 - 6x4 + 10x3 - 3)
A. -8x9 + 3x7 + 6x4 - 13x3 + 7 B. -8x9 + 3x7 - 6x4 - 13x3 + 7 C. 8x9 + 3x7 - 6x4 - 13x3 + 7 D. 8x9 + 3x7 + 6x4 - 13x3 + 7
Mathematics
Find the product.8.80
A. 0.352 B. 0.0352 C. 3.52 D. 0.00352.
Mathematics