Solve.A window washer accidentally drops a bucket from the top of a 256-foot building. The height h of the bucket after t seconds is given by 
When will the bucket hit the ground?
A. -4 sec
B. 64 sec
C. 4 sec
D. 16 sec
Answer: C
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Find the center, radius, and intercepts of the circle.x2 + y2 - 2x + 4y - 7 = 0
A. (h, k) = (1, -2), r = 2
x-int: x = 1 ± 2
; y-int: y = -2 ± 
B. (h, k) = (-1, 2), r = 12
x-int: x = 1 + 2
; y-int: y = -2 + 
C. (h, k) = (-1, -2), r = 2
x-int: x = 1 + 2
; y-int: y = -2 + 
D. (h, k) = (1, -2), r = 2
x-int: x = -1 ± 2
; y-int: y =2 ± 
Solve for x using an equivalent exponential expression.Find the volume of a sphere with radius 4 inches. Use 
for 
A. 268
cu in.
B. 25
cu in.
C. 50
cu in.
D. 804
cu in.
Subtract.(r3 - 7rs + 5s2) - (9r3 + rs - 2s2)
A. -8r3 - 6rs + 7s2 B. -8r3 - 8rs + 7s2 C. -8r3 - 8rs + 3s2 D. -9r3 - 7rs + 3s2
Use the circle graph to solve the problem.The circle graph below gives the inventory of the men's department of a store.
What is the total inventory?
A. $105,287 B. $150,410 C. $153,881 D. $157,352