Solve.A young girl watching a group of ants moving along a straight line determines that their position x along the line as a function of time t is given by x(t) = t4 + 2t3 - 16t2 + 48t cm. Give an equivalent expression for x(t) by factoring out a common factor.
A. t(t2 + 2t + 32)
B. t(t3 + 2t2 + 32t)
C. t(t3 + 2t2 - 16t + 48)
D. t(t2 + 2t - 32)
Answer: C
Mathematics
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A. 10(15i - 8k)
B. 
(15i - 8k)
C. 10(i - k)
D. 
(15i - 8k)
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Simplify using order of operations.72 ÷ (-6)2 + (-7)
A. -5 B. 9 C. -9 D. 5
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Perform the indicated operations and simplify the result. Leave the answer in factored form.
? 
A. 
B. 
C. 
D. 
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Perform the operation indicated. Simplify.
+ 
A. x - 4
B. x + 4
C. 
D. x - 5
Mathematics