Use graphs to find the set.(-?, 2) ? [-8, 16)
A. (-?, -8]
B. (2, 16)
C. [-8, 2)
D. (-?, 16)
Answer: D
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Express the given quantity in terms of sin x or cos x.sin 
A. cos x B. -cos x - sin x C. -cos (-x) D. -cos x
Complete the sketch so that it has the indicated symmetry.Complete the sketch so that it has point symmetry about O.
What will be an ideal response?
Find the LCD. Do not combine fractions.
, 
A. 20xy3 B. 20xy C. 20x4y3 D. 20x4y2
For the polynomial, list each real zero and its multiplicity. Determine whether the graph crosses or touches the x-axis at each x -intercept.f(x) = 2(x2 + 2)(x2 + 1)2
A. -2, multiplicity 1, touches x-axis; -1, multiplicity 2, crosses x-axis
B. 
, multiplicity 1, crosses x-axis; -
, multiplicity 1, crosses x-axis;
1, multiplicity 2, touches x-axis; -1, multiplicity 2, touches x-axis
C. No real zeros
D. -2, multiplicity 1, crosses x-axis; -1, multiplicity 2, touches x-axis