Find the exact area of the circle.
A. 144? sq ft
B. 2304? sq ft
C. 576? sq ft
D. 36? sq ft
Answer: D
Mathematics
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Simplify the radical expression. Assume that all variables represent positive real numbers.
A. 5k3q4 
B. 5k7q8 
C. 5k3q4 
D. 5q4 
Mathematics
Write an equation for the line. Give the final answer in slope-intercept form.Through (4, 2), m = - 8
A. y = -8x - 34
B. y = - 
x + 34
C. y = -8x + 34
D. y = -8x + 
Mathematics
Decide whether or not the ordered pair is a solution of the system.(-4, -1)4x + y = -153x + 4y = -8
A. Yes B. No
Mathematics
Solve the problem.A rock falls from a tower that is 78.4 m high. As it is falling, its height is given by the formula 
with t in seconds. How many seconds will it take for the rock to hit the ground (h = 0)?
A. 1254.4 sec B. 4 sec C. 8.6 sec D. 8.9 sec
Mathematics