Factor the perfect square trinomial completely.147m2 + 168mn + 48n2
A. 3(7m - 4n)2
B. (21m + 12n)2
C. 3(7m + 4n)2
D. (21m - 3n)2
Answer: C
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Use scientific notation to perform the following operations. Leave your answer in scientific notation.(5 × 10-5) ÷ (10 × 10-3)
A. 5.0 × 107 B. 2.0 × 10-2 C. 5.0 × 10-3 D. 2.0 × 108
Solve the problem.Mr. Larsen's third grade class has 22 students, 12 girls and 10 boys. Two students must be selected at random to be in the fall play. What is the probability that no boys will be chosen? Order is not important.
A. 
B. 
C. 
D. 
Multiply.0.0071 × 8.7
A. 0.06177 B. 0.0006177 C. 0.6177 D. 0.006177
Use a quantifier to make the following true or false, as indicated, where x is a natural number.2x + 1 = 5 - x (make true)
A. No natural number x exists such that 2x + 1 = 5 - x. B. Only two natural numbers x exist such that 2x + 1 = 5 - x. C. For every natural number x, 2x + 1 = 5 - x. D. There exists a natural number x such that 2x + 1 = 5 - x.