Find the product.8x7(-7x3 + 5)
A. -16x7
B. -56x3 + 40
C. -56x10 + 40x7
D. -56x10 + 5
Answer: C
Mathematics
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Evaluate or simplify the given expression.cos(2 sin-1 x)
A. 1 - x2 B. 2x2 + 1 C. 1 - 2x2 D. 1
Mathematics
Decide if the situation is a permutation or a combination and then answer the question.How many relay teams of 4 members can be chosen from a 9 member team to run in a relay race?
A. Combination; 504 B. Permutation; 36 C. Combination; 30 D. Permutation; 3024
Mathematics
Complete the table for the equation.-3x - 3y = -9
A. 0; -6; 3 B. 0; -3; -6 C. 0; 6; 3 D. 0; 3; 6
Mathematics
Multiply.× 
A. 0.0646 B. 0.0446 C. 0.0546 D. 0.1546
Mathematics