Multiply. Use the special formula that applies.(n + 12)2
A. n2 + 24n + 144
B. 144n2 + 24n + 144
C. n2 + 144
D. n + 144
Answer: A
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Graph the ellipse. Label the x- and y-intercepts.36x2 + 4y2 = 144
A. x-intercepts:(-6, 0), (6, 0);
y-intercepts: (0, 2), (0, -2)
B. x-intercepts:(-6, 0), (6, 0);
y-intercepts: (0, 3), (0, -3)
C. x-intercepts:(-6, 0), (6, 0);
y-intercepts: (0, 7), (0, -7)
D. x-intercepts: (-2, 0), (2, 0);
y-intercepts: (0, 6), (0, -6)
Establish the identity.sin
= 
(sin x - cos x)
What will be an ideal response?
A publishing company has published a new magazine for young adults. The monthly sales S (in thousands) is given by 
where t is the number of months since the first issue was published. Find S(3) and S'(3) and interpret the results.
A. At three months, the monthly sales are $480,000 and decreasing at 64,000 magazines per month. B. At three months, the monthly sales are $2, 400,000 and increasing at 64,000 magazines per month. C. At three months, the monthly sales are $2,400,000 and increasing at 800,000 magazines per month. D. At three months, the monthly sales are $480,000 and increasing at 64,000 magazines per month.
Reduce the improper fraction.
A. 
B. 
C. 
D. 2