Solve the equation.
= 
A. {-27}
B. {27}
C. {3}
D. {-15}
Answer: B
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Find the equation of the axis of symmetry.f(x) = -(x + 3)2 + 8
A. x = -8 B. x = 3 C. x = -3 D. x = 8
Find the area of the given region.Find the area of the region bounded by the graph of f(x) = (x - 5)2and the x-axis between x = 0 and x = 5.
A. 
B. 
C. 
D. - 
Solve the problem by using two equations with two variables.A retired couple has $170,000 to invest to obtain annual income. They want some of it invested in safe Certificates of Deposit yielding 7%. The rest they want to invest in AA bonds yielding 12% per year. How much should they invest in each to realize exactly $17,400 per year?
A. $110,000 at 12% and $60,000 at 7% B. $110,000 at 7% and $60,000 at 12% C. $120,000 at 12% and $50,000 at 7% D. $100,000 at 7% and $70,000 at 12%
Find all complex zeros of the polynomial function. Give exact values. List multiple zeros as necessary.f(x) = 3x4 - 10x3 + 20x2 - 40x + 32
A. 
, 2, -i, i
B. 
, 2, -2i, 2i
C. - 
, -2, -2i, 2i
D. 
, 2, -4i, 4i