Simplify the expression. If any variables are present, assume that they are positive.
A. (9x3y4)
B. (9x7y8)
C. (9x3y4)
D. (9y4)
Answer: C
Mathematics
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Simplify the radical.
A. m
B. m4
C. m5
D. m4
Mathematics
Solve the problem.In order to purchase a home, a family borrows $45,000 at an annual interest rate of 9%, to be paid back over a 30 year period in equal monthly payments. What is their monthly payment?
A. $11.25 B. $337.50 C. $377.64 D. $362.08
Mathematics
Solve the problem.If the sides of a square are increased by 2 meters, the area becomes 36 square meters. Find the length of a side of the original square.
A. 8 m B. 2 m C. 6 m D. 4 m
Mathematics
Find the second-order partial derivative.Find fyx when f(x, y) = x5y6 - 
x8y7 + 17x - y.
A. 30x4y5 - 56
x7y6
B. 20x3y6 - 56
x6y7
C. 30x4y4 - 56
x7y5
D. 30x3y4 - 42
x7y5
Mathematics