Solve the polynomial inequality and graph the solution set on a number line. Express the solution set in interval notation.2x2 + 5x - 12 ? 0
A. 
B. [-4, ?)
C. (-?, -4] ? 
D. 
Answer: A
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Find the indicated directed path.Find a directed path from "D to B". 
A. "DECB" B. "No route exists." C. "DCB" D. "DEFAB"
Add.+ 
A. 176.71 B. 175.71 C. 175.81 D. 176.81
The length of time (in seconds) a certain individual takes to learn a list of n items is approximated by 
.
?
Use differentials to approximate the additional time it takes the individual to learn the items on a list when n is increased from 70 to 72 items. Round to the nearest second.
?
__________ sec
Fill in the blank(s) with the appropriate word(s).
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