Give an appropriate answer.Let
f(x) = 8. Find
log2 f(x).
A. 10
B. 9
C. 
D. 3
Answer: D
Mathematics
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Find 
.y = (x + 8) sin x
A. cos x ln (x + 8) + 
B. sin x ln (x + 8)
C. (x + 8) sin x
D. 
(x + 8) sin x
Mathematics
Identify the equation as either an identity or not.
= cos x + cot x
A. Identity B. Not an identity
Mathematics
Determine any local or absolute extrema as indicated.Estimate graphically the absolute extrema of f(x) = 
x3 - 2x2 - 5x.
A. Absolute maximum: -1; absolute minimum: 5 B. No absolute maximum; no absolute minimum C. Absolute maximum: ?; absolute minimum: -? D. Absolute maximum: 2.67; absolute minimum: 66.67
Mathematics
Solve the system of equations by the substitution method. Check your solutions. For any dependent equations, write your answer in the ordered pair form.
A. {(4, -4)} B. {(-4, -3)} C. {(3, -3)} D. ?
Mathematics