Solve the problem.A writer received $39,000 as royalty for her book. She invested part of the money in bonds paying 6% interest annually. The rest she invested in a life insurance policy paying 12% interest annually. If the total interest from the investments after 1 year is $4080, how much did she invest in bonds?
A. $29,000
B. $10,000
C. $11,000
D. $30,000
Answer: B
Mathematics
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Solve the problem.Evaluate 
at t = 9 for the function w(x, y, z) = exyz2; x = t, y = t, z = 
.
A. 
B. 
e
C. 0
D. - 
e
Mathematics
Use set notation to list all the elements of the set.{x : x is an even natural number less than 10}
A. {2, 4, 6, 8} B. {0, 1, 2, 3, 4, 5, 6, 7, 8, 9} C. {1, 2, 3, 4, 5, 6, 7, 8, 9} D. {0, 2, 4, 6, 8}
Mathematics
Use substitution to determine whether the given number is a zero of the given polynomial.3; f(x) = -x4 - 7x2 - x + 4
A. Yes B. No
Mathematics
Solve the problem.If the product of some number and 5 is increased by 6, the result is 36. Find the number.
A. 9 B. 7 C. 6 D. 12
Mathematics