Write the expression in lowest terms.
A. - 
B. -1
C. 
D. 1
Answer: A
Mathematics
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Write a third-degree polynomial equation with real coefficients and the roots 2, -i.
What will be an ideal response?
Mathematics
Solve the problem.A boat travels d miles against the current whose rate is 7 mph. On the return trip, the boat travels with the same current. The expression 
+ 
, where r is the speed of the boat in calm water, represents the total amount of time in hours it takes for the entire trip. Represent this amount of time as a single rational expression.
A. 
B. 
C. 
D. 
Mathematics
Write exponential notation.(5.7) ? (5.7) ? (5.7)
A. (5.7)3 B. (3)(5.7) C. (5)3 ? (7)3 D. (3)5.7
Mathematics
Divide.4000 ÷ 80
A. 50 B. 3200 C. 500 D. 320,000
Mathematics