Simplify the radical.
A. 2
B. 4
C. 5
D. 10
Answer: A
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Provide an appropriate response. Solve the following quadratic using any method: x2 = 64.
A. x = 8 B. x = 8i, -8i C. x = 8i D. x = 8, -8
The graph of a one-to-one function is given. Draw the graph of the inverse function f-1. For convenience, the graph of 
is also give.
A. 
B. 
C. 
D. 
Find the vertex, focus, and directrix of the parabola. Graph the parabola.y2 + 6y = 8x + 39
A. vertex: (-6, -3)
focus: (-6, -1)
directrix: y = -5
B. vertex: (-6, -3)
focus: (-6, -5)
directrix: y = -1
C. vertex: (-6, -3)
focus: (-8, -3)
directrix: x = -4
D. vertex: (-6, -3)
focus: (-4, -3)
directrix: x = -8
Solve.A sequence of payments of $1900 is invested at the end of every compounding period, where interest is compounded semiannually at an interest rate of 4.2%. What is the total amount of the annuity after 5 years?
A. $76,587.85 B. $46,048.59 C. $20,899.84 D. $66,137.93