Perform the indicated operations and simplify. Assume all variables represent positive real numbers.
- 3
+ 2
A. 14
B. 39
C. -14
D. -39
Answer: C
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For the given direct statement, write the indicated related statement (converse, inverse, or contrapositive).He who laughs last, laughs loudest. (inverse)
A. If he laughs last, he doesn't laugh loudest. B. If he doesn't laugh last, he doesn't laugh loudest. C. If he laughs loudest, he laughs last. D. If he doesn't laugh loudest, he doesn't laugh last.
Write the expression with positive exponents only. Then simplify, if possible.9-1 + 4-1
A. 
B. 
C. 
D. 2
?Medication. The number of milligrams x of a medication in the bloodstream t hours after a dose is taken can be modeled by 
. Find the maximum value of x. Round your answer to two decimal places.
?
A. 1.73 hours B. ??1443.37 hours C. ?3.73 hours D. ?4.22 hours E. 1.73 hours
Write the inequality in interval notation.0 ? x < 4
A. (0, 4) B. [0, 4] C. (0, 4] D. [0, 4)