Simplify the expression.(-39)4
A. Exponent: -4, base: 39
B. Exponent: 4, base: -39
C. Exponent: 4, base: 39
D. Exponent: -39, base: 4
Answer: B
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Find all critical numbers for the function. State whether it leads to a local maximum, a local minimum, or neither.f(x) = 
A. No critical numbers; no local extrema B. Local maximum at -5; local minimum at 1 C. Local minimum at 1 D. Local maximum at -5
Identify the vertex of the given parabola.f(x) = (x - 5)2
A. (0, -5) B. (0, 5) C. (-5, 0) D. (5, 0)
Find the exact value of the expression.tan 165°
A. 
B. 
C. -2 + 
D. 2 - 
The sequence is defined recursively. Write the first four terms.a1 = 2, a2 = 5; an = an-2 - 3an-1
A. a1 = 2, a2 = 5, a3 = -1, a4 = -16 B. a1 = 2, a2 = 5, a3 = 1, a4 = 2 C. a1 = 2, a2 = 5, a3 = -13, a4 = 44 D. a1 = 2, a2 = 5, a3 = 17, a4 = -46