Use rational exponents to simplify. Write the answer in radical notation if appropriate.
6
A. (ab)3
B. 
C. 
3
D. (ab)2
Answer: D
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Solve the initial value problem.Differential Equation: 
= -3ti + 3tj + 5tkInitial Condition: r(0) = -4i + 6k
A. r(t) = (-3t2 - 8)i + 3t2j + (5t2 + 12)k
B. r(t) = 
i + 
t2j + 
k
C. r(t) = 
i + 
t2j - 
k
D. r(t) = 
i + 
t2j + 
k
Multiply using the Russian Peasant method.68 × 358
A. 24,024 B. 24,304 C. 24,344 D. 24,334
Multiply or divide as indicated.
? 
A. 3 B. -3 C. -3i D. 3i
Estimate the probability of an event (empirical probability). A new drug is being tested that is supposed to lower cholesterol. This drug was given to 200 people. After the test period ended, 112 people had lower cholesterol, 6 people had higher cholesterol, and 82 people had no change in their cholesterol. Estimate the probability that after testing this drug a person's cholesterol will be higher.
A. 
B. 
C. 
D. 