Write the partial fraction decomposition of the rational expression.
A. 
+ 
B. 
+ 
+ 
C. 
+ 
+ 
D. 
+ 
Answer: A
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Express the given expression in simplest form with only positive exponents.
A. 
B. 
C. 
D. 212p
Solve the problem.Cory and Melissa are racing electronic cars around a circular track. They begin at the same time going in the same direction. Cory's car completes a revolution in 35 seconds, while Melissa's car completes a revolution in 30 seconds. How long will it take them before both cars reach the starting point again simultaneously?
A. 84 seconds B. 210 seconds C. 42 seconds D. 420 seconds
Find the square root.
A. 1
B. 
C. 6
D. 3
Solve the problem.If P dollars are invested at a simple interest rate r (in decimals), the amount A that will be available after t years is A = P + Prt. If $1800 is invested at a rate of 12.7% simple interest, how long will it before the amount of money available is $2142.90?
A. 0.5 yr B. 5.5 yr C. 1.5 yr D. 1.2 yr