Find the quantity indicated.Suppose that y varies inversely with x. When x = 8, then y = 10. Find y when x = 40.
A. 5
B. 2
C. 64
D. 16
Answer: B
Mathematics
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Find the indicated derivative of the function.f'''(x) for f(x) = 2x3 + 2x2 - 5x
A. 6x +12 B. 6 C. 12x + 6 D. 12
Mathematics
Find the volume. Use ? ? 3.14. Round to the nearest tenth when necessary.a cylinder with radius 4 m and height 9 m
A. 452.2 m3 B. 113 m3 C. 226.1 m3 D. 1808.6 m3
Mathematics
Determine whether the function is a solution of the wave equation.w = sin(10x + 10ct)
A. Yes B. No
Mathematics
Solve the problem.Suppose that f and g are continuous and that 
and 
A. -75 B. 39 C. -51 D. -15
Mathematics