Solve the problem.A brick staircase has a total of 15 steps. The bottom step requires 113 bricks. Each successive step requires 4 less bricks than the prior one. How many bricks are required to build the staircase?
A. 2550 bricks
B. 2115 bricks
C. 1275 bricks
D. 1245 bricks
Answer: C
Mathematics
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Find the zeros of f(x), given that one zero is k.f(x) = x4 - 32x2 - 144
k = -2i
A. ±2i, ±12 B. ±2i, ±12i C. ±2i, ±6 D. ±2i, ±6i
Mathematics
Solve.In a practice run, a race car driver's speed is clocked at 137.607 mph at the end of his first lap, and at 170.047 mph at the end of the next lap. How much faster was he driving at the end of the second lap?
A. 33.440 mph B. 32.340 mph C. 32.450 mph D. 32.440 mph
Mathematics
Solve the equation.x - 
= - 
A. - 1
B. - 
C. 
D. 1
Mathematics
Find the average rate of change of the function as x changes from a to b.h(x) = 
; a = -2, b = 3
A. 0
B. 
C. 
D. - 
Mathematics