Solve the problem.A bridge is built in the shape of a parabolic arch. The bridge arch has a span of 200 feet and a maximum height of 30 feet. Find the height of the arch at 15 feet from its center.
A. 25 ft
B. 2.7 ft
C. 0.2 ft
D. 29.3 ft
Answer: D
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Use Stokes' Theorem to calculate the circulation of the field F around the curve C in the indicated direction.F = x2i + xyj + yk; C: the counterclockwise path around the perimeter of the rectangle in the x-y plane formed from the x-axis, y-axis , x = 5 and y = 11
A. 605
B. 
C. - 
D. -605
Use the distributive property to rewrite the algebraic expression without parentheses. Then simplify the result, if possible.- (-2m + 2n - 9p)
A. -2m + 2n + 9p B. 2m - 2n - 9p C. 2m - 2n + 9p D. -2m + 2n - 9p
Determine if the function is a power function. If it is, then state the power and constant of variation.f(x) = 2x2/5
A. Power is 
; constant of variation is 2
B. Power is 2; constant of variation is 
C. Not a power function
D. Power is 
; constant of variation is 2
Solve the equation.3x - 6 = 12
A. {10} B. {19} C. {15} D. {6}