For the given functions f(x) and g(x), find (f + g)(x) or (f - g)(x) as indicated.f(x) = 3x + 7, g(x) = x2 - 5x + 9Find (f + g)(x).
A. x2 + 7x + 16
B. x2 - 2x + 6
C. x2 + 7x + 2
D. x2 - 2x + 16
Answer: D
Mathematics
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Solve.x2 + 10x + 9 = 0
A. 1, 9
B. 
, - 
C. -1, -9
D. 18, -9
Mathematics
Is the function graphed below one-to-one?
A. Yes B. No
Mathematics
Find the domain of the expression.
?
?
A. all real numbers B. all real numbers except x =-7 C. all real numbers except x = 8 D. all real numbers except x = 8 and x = -7 E. x = 8 or x = -7
Mathematics
Express the number in scientific notation.0.000315
A. 3.15 × 10-3 B. 3.15 × 104 C. 3.15 × 10-4 D. 3.15 × 10-5
Mathematics