Rationalize the denominator. Assume that all variables represent positive real numbers.
A. 
B. 
C. 
D. 4x
Answer: A
Mathematics
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Solve the problem.Evaluate 
at t = 9 for the function w = ey - ln x; x = t2, y = ln t.
A. 7
B. 
C. 
D. - 
Mathematics
Divide, when possible.128 ÷ 15
A. 8 r9 B. 7 r7 C. 9 r8 D. 8 r8
Mathematics
Perform the indicated operation.(x + 6)(x3 + 7x - 2)
A. x4 + 6x3 + 7x2 + 44x + 12 B. x4 + 6x3 + 7x2 + 40x - 12 C. x4 + 7x2 - 2x + 6 D. x3 + 13x2 + 40x - 12
Mathematics
Solve the problem.Dr. Bell wants to borrow $5000 for home improvements. He doesn't want to pay more than $250.00 in interest. Find the longest time for which the money may be borrowed if the interest rate is 6% per year. Round to the nearest month.
A. 9 months B. 8 months C. 12 months D. 10 months
Mathematics