Evaluate the polynomial using the given values.9x - 8y ; x = 9, y = -5
A. 101
B. 116
C. 123
D. 121
Answer: D
Mathematics
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Evaluate the spherical coordinate integral.
A. 
?(15? - 16)
B. 
?(15? - 8)
C. 
?(15? - 16)
D. 
?(15? - 8)
Mathematics
Evaluate.6 ? 23
A. 14 B. 48 C. 36 D. 1728
Mathematics
Solve the problem.An object is propelled vertically upward from the top of a 224-foot building. The quadratic function 
models the ball's height above the ground, 
in feet, t seconds after it was thrown. How many seconds does it take until the object finally hits the ground? Round to the nearest tenth of a second if necessary.
A. 2.0 sec B. 7.0 sec C. 2 sec D. 2.5 sec
Mathematics
Simplify each side of the equation, if possible. Then solve the equation.
k + 5k = 24 - 3 + 2
A. k = 29
B. k = 
C. k = 
D. k = 23
Mathematics