Perform the indicated operations.(9x2 - 4x + 14) + (-6x2 + 14x + 16)
A. 3x2 + 10x - 2
B. 3x2 - 10x + 30
C. 3x2 + 2x - 2
D. 3x2 + 10x + 30
Answer: D
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Solve the problem.Two angles are said to be complementary if their sum is 90°. If one angle measures 
degrees, find the measure of its complement.
A. (
)°
B. 51°
C. 39°
D. (
)°
Solve the problem.Use the formula s = r? to determine the value of s in the figure. Round to two decimal places, if necessary.
A. 3.82 in. B. 21.21 in. C. 1215 in. D. 2.36 in.
Write the system in the form 
Then solve the linear system by computing 
with a calculator. Round numbers to the nearest tenth, as necessary.2.6x - 0.7y + 5.3z - 3.4w = 12.9 6.5y + 0.7w = -1.8 4.0z - 2.2w = 1.54.9x + 0.6w = 3.2
A. (2.2, 1.1, -6.4, -12.4) B. (-2.2, 1.1, -6.4, 23.3) C. (2.2, 1.1, 7.2, 12.4) D. (2.2, -1.1, -6.4, 7.6)
Provide an appropriate response.Write the equation of the line in the following graph.
A. f(x) = 
x - 1
B. f(x) = 
x + 1
C. f(x) = - 
x + 1
D. f(x) = - 
x - 1