Complete the factoring.7x2y4 + 42x2y3 = 7x2y3( )
A. x2y + 6
B. 7y + 6x
C. y + 6
D. y + 6x2
Answer: C
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Simplify. Write the answer using only positive exponents.
-4
A. 
B. 
C. 512
D. 5
Evaluate the integral using the given substitution.
dx , u = - 
A. - 
+ 
sin 
+ C
B. - 
+ sin3 
+ C
C. 
+ 
sin 
+ C
D. - 
+ 
sin 
+ C
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
The management of AstroWorld ("The Amusement Park of the Future") estimates that the number of visitors (in thousands) entering the amusement park t hours after opening time at 10 A.M. is given by
?
?
per hour. Determine the number of visitors admitted by noon.
?
A. 10,667 B. 11,119 C. 11,244 D. 10,338