Let f(x) = 8x2 - 5x and g(x) = 7x + 9.Find the composite.g[f(k)]
A. 392k2 - 973k + 603
B. 56k2 + 35k + 9
C. 392k2 + 973k + 603
D. 56k2 - 35k + 9
Answer: D
Mathematics
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Solve the problem.If f(4) = 15, what is f-1(15)?
A. 
B. 15
C. -4
D. 4
Mathematics
Use words to describe the interval of real numbers.
A. The real numbers greater than -4 and less than or equal to 1. B. The real numbers greater than or equal to -4. C. The real numbers greater than -4 and less than 1. D. The real numbers greater than or equal to -4 and less than or equal to 1.
Mathematics
Use the formula for the sum of the first n terms of a geometric sequence to solve.Find the sum of the first five terms of the geometric sequence: 
, 
, 
, . . . .
A. 
B. 
C. 
D. 93
Mathematics
Multiply.1208(604)
A. 77,312 B. 12,080 C. 729,632 D. 728,424
Mathematics