Multiply and simplify. Assume that all variables represent positive real numbers.
? 
A. 5xy3
B. 25xy3
C. 25xy6
D. 25y3
Answer: B
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Use the indicated model of multiplication to illustrate the statement.(2 ? 3) ? 4 = 2 ? (3 ? 4); array model
A. (2 ? 3) ? 4 has four sets of blocks with 2 rows and 3 columns in each set.
4 sets of these
2 ? (3 ? 4) has two sets of blocks with 3 rows and 4 columns in each set.
2 sets of these
B. (2 ? 3) ? 4 has six sets of blocks with 1 column and 4 rows in each set.
6 sets of these
2 ? (3 ? 4) has 12 sets of blocks with 1 column and 2 rows in each set.
12 sets of these
Find the value of the logarithmic function.log(1000)
A. -3 B. 3 C. -1 D. 1
Find the vertex of the parabola.f(x) = 2x2 - 20x + 54
A. (5, 4) B. (-4, -5) C. (4, 5) D. (-5, -4)
Graph the function by starting with the graph of 
and using transformations.f(x) = 3(x + 2)2 - 2
A. 
B. 
C. 
D. 