Solve the problem.Find the volume of a triangular pyramid with base area 20 ft2 and height 9 ft. Find the result to the nearest unit.
A. 58 ft3
B. 180 ft3
C. 90 ft3
D. 60 ft3
Answer: D
Mathematics
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Determine whether the given quadratic function has a minimum value or maximum value. Then find the coordinates of the minimum or maximum point.f(x) = x2 - 2x - 2
A. minimum; 
B. maximum; 
C. minimum; 
D. maximum; 
Mathematics
Graph the circle. State the center and radius of the circle.x2 + (y - 4)2 = 25
A. center (0, 4); r = 5
B. center (4, 0); r = 5
C. center (0, -4); r = 5
D. center (-4, 0); r = 5
Mathematics
Find the partial derivative.f(x, y) = 7x - 10y2 - 9. Find fx(x, y).
A. 7 B. -2 C. 7x D. -20y
Mathematics
Determine whether the function is odd, even, or neither.f(x) = csc2 t - 1
A. Odd B. Neither C. Even
Mathematics