Use the simple interest formula.Kevin invested part of his $10,000 bonus in a certificate of deposit that paid 6% annual simple interest, and the remainder in a mutual fund that paid 11% annual simple interest. If his total interest for that year was $800, how much did Kevin invest in the mutual fund?
A. $3000
B. $4000
C. $6000
D. $5000
Answer: B
Mathematics
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Find a1, d, an, n, or Sn for the arithmetic sequence, as instructed.a1 = 1, d = 5, an = 21; Find Sn.
A. 21 B. 5 C. 26 D. 55
Mathematics
Find a formula for the nth term of the sequence.1, - 
, 
, - 
, 
(reciprocals of squares with alternating signs)
A. an = 
B. an = 
C. an = 
D. an = 
Mathematics
Write the ratio in simplest form.A molecule of ethanol is composed of two atoms of carbon, six atoms of hydrogen, and one atom of oxygen. Write the ratio of oxygen atoms to total atoms in a molecule of ethanol.
A. 
B. 9
C. 1
D. 
Mathematics
Write the radical in exponential form and then simplify. Write the answer in simplified radical form.
A. 
B. 
C. 
D. 
Mathematics