Solve the problem. Round your answer to the nearest whole number, if necessary.The function f(t) = -0.4t2 + 10t approximates the average number of digits that participants in a memorization experiment were able to recall after t minutes. Find the number of digits recalled after 6 minutes.
A. 46 digits
B. 86 digits
C. 66 digits
D. 26 digits
Answer: A
Mathematics
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Find the future value.$19,691 invested for 9 years at 3% compounded semiannually
A. $25,692.29 B. $25,785.82 C. $25,768.54 D. $25,742.84
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Add the real numbers. Write any improper fraction as a whole or mixed number where appropriate.5
+ 1
A. 6
B. 7
C. 7
D. 6
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The given pattern continues. Write down the nth term of the sequence suggested by the pattern.2, 4, 8, 16, 32, ...
A. an = 2n B. an = 2n-1 + 1 C. an = 2 + 2(n - 1) D. an = 2n
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Evaluate.sin (tan-11 - tan-10.8)
A. 
B. 
C. 82
D. 
Mathematics