Find an equation of variation for the given situation.y varies inversely as x and y = 0.75 when x = 32
A. y = 
B. y = 
C. y = 24x
D. y = 
Answer: A
Mathematics
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Solve the problem.Calculate 
, where R ={(x, y): 0 ? x ? 1, 0 ? y ? 1}. (Hint: This integral represents the volume of a certain solid. Calculuate its volume from elementary principles.)
A. 7.5 B. 6.5 C. 7 D. 14
Mathematics
Solve the problem.Find an equation in general form for the line graphed on a graphing utility. 
A. 2x + y = -1
B. x + 2y = -2
C. y = -2x - 1
D. y = - 
x - 1
Mathematics
Find the range of the given function.f(x) = -4x2 - 40x - 103
A. [5, ?) B. (-?, -5] C. (-?, -3] D. [3, ?)
Mathematics
Decide whether the equation shows direct, inverse, joint, or compound variation. y = 
A. Compound B. Joint C. Inverse D. Direct
Mathematics