Solve the problem.The polynomial 
measures the concentration of a dye in the bloodstream x seconds after it is injected. Does the concentration increase between 12 and 13 seconds?
A. No
B. Yes
Answer: B
Mathematics
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Solve the problem.An item is purchased for $2000 with a down payment of $500. There is a finance charge of 
Find the monthly payment if 24 payments are made.
A. $62.50 B. $66.67 C. $87.50 D. None of the above is correct.
Mathematics
Solve. If necessary, round answers to the nearest hundredth.The following test scores were recorded for a student: 97, 89, 85, 85, 97, 99. Find the mean, median, and mode.
A.
| mean: 92 | median: 93 | mode: 85 and 97 |
B.
| mean: 93 | median: 92 | mode: 97 |
C.
| mean: 93 | median: 93 | mode: 85 |
D.
| mean: 92 | median: 85 | mode: 99 |
Mathematics
Write a formula for the general term, or nth term, for the given sequence.-4, 16, -64, 256, -1024, . . .
A. an = -4 + 12(n - 1) B. an = (-1)n(4)n C. an = (-1)n - 1(4)n D. an = (-1)n(4n)
Mathematics
Find the exact solutions to the quadratic equation, using a method of your choice.0.7x2 + 0.9x + 0.8 = 0
A. 
B. 
C. 
D. 
Mathematics