Solve the problem.If $4900 is invested in an account earning 7% annual interest compounded continuously, then the number of years that it takes for the amount to grow to $9800 is 
Find the number of years to the nearest tenth of a year.
A. 7.9 yr
B. 14.9 yr
C. 11.9 yr
D. 9.9 yr
Answer: D
Mathematics
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Use L'Hospital's rule to find the limit.
x5e-x
A. ? B. 0 C. 5 D. -?
Mathematics
Find a rectangular equation for the plane curve defined by the parametric equations.x = t2 + 1, y = t2 - 1
A. y = x2 + 2, x ? 1 B. y = x + 2, x ? 1 C. y = x - 2, x ? 1 D. y = x2 - 2, x ? 1
Mathematics
Use a commutative property to complete the statement.5 + x =
A. x - 5 B. x + 5 C. 5 - x D. -x - 5
Mathematics
Why is contrast necessary?
What will be an ideal response?
Mathematics