Write the number as a product of prime factors.69
A. 22 × 5
B. 3 × 23
C. 32 × 23
D. 4 × 25
Answer: B
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Perform the indicated operations.(3x2 - 8x + 4) - (x2 - 3x + 2) + (8x2 + 5)
A. -6x2 - 11x + 11 B. 10x2 - 5x + 11 C. 10x2 - 5x + 7 D. 10x2 - 11x + 7
Underline the digit that occupies the given place.384?Hundreds place
A. 3
4
B. 
84
C. 38
D. None of these
Simplify using order of operations.64 - 40 ÷ 8
A. 59 B. -3 C. -59 D. 3
Solve the problem.Suppose that of the sons of right-handed fathers, 90% are right-handed and 10% are left-handed. Of the sons of left-handed fathers, 30% are right-handed and 70% are left-handed. (Assume that right-handed and left-handed fathers have sons in equal numbers.) Suppose that in the initial generation all of the fathers are right-handed. Determine the percentage of their grandsons that are left-handed.
A. 84% B. 1% C. 10% D. 16%