Solve the problem.In the following formula, f(x) is the minimum number of hours of studying required to attain a test score of x: 
How many hours of study are needed to score 84?
A. 24.40 hr
B. 100.92 hr
C. 4.83 hr
D. 2.44 hr
Answer: D
Mathematics
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Calculate the flow in the field F along the path C.F = ey2i + 
j + 4k , C is the curve r(t) = 6t2i + 3tj + (-6 - 4t)k , 1 ? t ? 3
A. 
(e81 - e9) + ln 3 - 32
B. 6(e81 - e9) + ln 3 - 32
C. 
(e81 - e9) + ln 3 + 32
D. 
(e81 - e9) + ln 3 - 32
Mathematics
For the given functions f(x) and g(x), find f(x) ? g(x).f(x) = 8x2, g(x) = 3x3
A. 24x5 B. 11x6 C. 11x5 D. 24x6
Mathematics
Evaluate the polynomial for the given value.4x2 - 6x - 7
x = -5
A. 123 B. -137 C. -77 D. 63
Mathematics
Determine if the given value is a solution to the equation.4m - 2 = - 37 - 3m; m = -5
A. No B. Yes
Mathematics