Use the fundamental identities and appropriate algebraic operations to simplify the expression. 
A. sin2 x
B. 1
C. cos2 x
D. -1
Answer: A
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Find the greatest common factor, GCF, of the expressions.x6, x2
A. x8 B. x2 C. x12 D. x4
An investment firm offers 3 stock portfolios, A, B, and C. The number of blocks of each type of stock in each of these portfolios is summarized in the following table: 
A client wants 26 blocks of high-risk stock, 25 blocks of moderate-risk stock, and 29 blocks of low-risk stock. Use the matrix operations on a graphing calculator to find how many of each portfolio should be suggested.
What will be an ideal response?
Use a calculator to approximate the square root. Round the square root to the nearest thousandth.
A. 2.646 B. 2.643 C. 2.651 D. 2.131
Graph the function by starting with the graph of the basic function and then using the techniques of shifting, compressing, stretching, and/or reflecting.f(x) = (x - 1)3
A. 
B. 
C. 
D. 