Factor completely. If the polynomial is prime, state so.z2 - 81
A. (z + 9)(z - 9)
B. (x - 9)2
C. prime
D. (x + 9)2
Answer: A
Mathematics
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Determine ? in decimal degrees, 0° ? ? ? 90°. Round results to an appropriate number of significant digits.sec ? = 8.45
A. 83.2° B. 83.00° C. 83.20° D. 83.0°
Mathematics
Use a graph to find an approximate solution to the equation. Round to the nearest thousandth.43x = 7x + 1
A. 1.404 B. 0.879 C. 2.404 D. -3.477
Mathematics
Provide an appropriate response. Solve the following quadratic equation using any method: x2 - 8x + 16 = 0
A. x = 4, -4 B. x = 9.66, -1.66 C. x = 4, 4 D. x = -4, -4
Mathematics
For the function, find the average rate of change of f from 1 to x: 
f(x) = 4x
A. 3
B. 
C. 4
D. 0
Mathematics