Simplify the expression. Write the answer with only positive exponents. Assume that all variables represent positive real numbers.
A. 48/25m4
B. -26/5m3
C. 28/5m3
D. 
Answer: C
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Select the requested distribution.Which of the distributions is symmetric?
A. 
B. 
C. 
D. 
Solve the problem.Four married couples have reserved eight seats in a row at the theater, starting at an aisle seat. In how many ways can they arrange themselves if Maria is to sit in the aisle seat?
A. 5040 B. 40, 320 C. 7 D. 823,543
Solve the problem.Use the formula R = log
, where the magnitude of an earthquake on the Richter scale is based on I, the measurement of a seismic wave, and I0, the measurement of a seismic wave of a level zero earthquake with the same epicenter. An earthquake was recorded which was 2,511,886 times more powerful than a reference level zero earthquake. What is the magnitude of this earthquake? (Round to the nearest tenth.)
A. 5.4 B. 6.4 C. 0.6 D. 14.7
Solve the linear inequality. Other than ?, use interval notation to express the solution set and graph the solution set on a number line.8x - 4 ? 7x - 8
A. (-?, -4]
B. [-4, ?)
C. (-?, -4)
D. (-12, ?)