Use a proportion to solve the problem.Jim drove 400 miles in 8 hours. If he can keep the same pace, how long will it take him to drive 1400 miles?
A. 3200 hr
B. 38 hr
C. 28 hr
D. 56 hr
Answer: C
Mathematics
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Find the second derivative of the function.y = 
A. 
= 
+ 
B. 
= 
+ 
C. 
= - 
- 
D. 
= - 
- 
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Give the degree of the term.7
A. 0 B. 7 C. 1 D. -7
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Simplify the expression. Assume that variables represent nonzero numbers.(4a)2
A. 16a B. 16a2 C. 8a2 D. 8a
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Write the rational number in lowest terms.
A. -30
B. - 
C. 20
D. -20
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