Solve. Try factoring first. If factoring is not possible or is difficult, use the quadratic formula.9k2 - 64 = 0
A. 
, - 
B. 
, - 
C. 
, 0
D. 8, 0
Answer: A
Mathematics
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Evaluate the function. 
If y = f(x), find f(4).
A. -3 B. 2 C. -2 D. 3
Mathematics
Find the average rate of change for the function between the given values.f(x) = 9x3 + 2x2 - 7; from -3 to 2
A. 
B. 
C. 
D. 61
Mathematics
Factor by grouping.x3 + 8x2 + x + 8
A. (x2 + 1)(x + 8) B. (x2 + 1)(8x + 8) C. (8x2 + 8)(x + 1) D. (x2 + 8)(x + 1)
Mathematics
Solve the problem.Two angles have a sum of 84°. Their difference is 10°. Find the angles.
A. 75° and 9° B. 39° and 49° C. 45° and 39° D. 47° and 37°
Mathematics