Solve the problem.Mardi received an inheritance of $60,000. She invested part at 12% and deposited the remainder in tax-free bonds at 11%. Her total annual income from the investments was $6900. Find the amount invested at 12%.
A. $53,100
B. $15,000
C. $30,000
D. $29,000
Answer: C
Mathematics
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Find the product.(x + 7)
A. x2 + 
x - 
B. x2 + 
x + 
C. x2 - 
x + 
D. x2 + 
x - 
Mathematics
Find a, b, and h so that f(x) ? a sin (b(x - h)). Round to two decimal places if necessary.f(x) = 5 cos x + 2 sin x
A. a = 5.39, b = 1, h = -1.19 B. a = 7.00, b = 2, h = -0.79 C. a = 5.39, b = 2, h = 1.19 D. a = 1.19, b = 1, h = 5.39
Mathematics
Answer the question, concerning the use of substitution in integration.If we use u = x2 as a substitution to find 
then which of the following would be a correct result?
A. 
B. 
C. 
D. None of the above
Mathematics
Express as an equivalent expression without exponents.(-4)2
A. 16 B. -8 C. -16 D. 8
Mathematics