Solve.The height of a golf ball in feet after t seconds is given by 128t - 16t2. Factor this expression.
A. 16t2(8 - t)
B. 16t(8 - t)
C. 16(8t - t2)
D. 4t(32 - 4t)
Answer: B
Mathematics
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? x = 98
A. 137 B. 98 C. 19 D. 70
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Factor by grouping.xy + y + 9x + 9
A. (x + 1)(y + 9) B. (x + 9)(y + 1) C. (x + 1)(9y + 9) D. (9x + 9)(y + 1)
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Solve by isolating the absolute value and using the absolute value property.|5k + 2| + 3 = 9
A. 
B. 
C. 
D. ?
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Solve the problem.How many arrangements of answers are possible in a multiple-choice test with 9 questions, each of which has 5 possible answers?
A. 1,953,125 B. 15,120 C. 3024 D. 126
Mathematics