The position vector of a particle is r(t). Find the requested vector.The acceleration at t = 
for r(t) = (7t - 4t3)i + 2tan(3t)j + e5tk
A. a
= - 2?i + 72j + 25e5/12?k
B. a
= - 2?i - 72j + 25e5/12?k
C. a
= - 2?i - 72j + 25k
D. a
= 2?i + 72j + 25e5/12?k
Answer: A
Mathematics
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?
?
A. 
B.
C.
D.
E.
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Write the solution set in interval notation.x ? 
A. (
, ?)
B. [
, ?)
C. (-?, 
]
D. (-?, 
)
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Solve the problem.Ben Franklin bequeathed $4000.00 to the city of Boston in 1790. Assuming the fund grew to 
in 200 years, find the interest rate compounded continuously that would yield this total value. Round to the nearest tenth when necessary.
A. 1.7% B. 2.6% C. 5.7% D. 3.5%
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Evaluate the expression.
A. 1 B. 11 C. 0 D. 39,916,800
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