Investment Problems An investment of P dollars is deposited in a savings account that is compounded monthly with an annual interest rate of r , where r is expressed as a decimal. The amount of money A in the account after t years is given by A = P ( 1 + r / 12 ) 12 t . Use this equation to complete the following exercises. 64. Determine the time it takes an investment of $20,000 to increase to $22,000 if it is placed in an account that is compounded monthly with an annual interest rate of 2.5%.
Investment Problems An investment of P dollars is deposited in a savings account that is compounded monthly with an annual interest rate of r , where r is expressed as a decimal. The amount of money A in the account after t years is given by A = P ( 1 + r / 12 ) 12 t . Use this equation to complete the following exercises. 64. Determine the time it takes an investment of $20,000 to increase to $22,000 if it is placed in an account that is compounded monthly with an annual interest rate of 2.5%.
Solution Summary: The author calculates the time taken to increase the investment of 20,000 to 22,000.
Investment Problems An investment of P dollars is deposited in a savings account that is compounded monthly with an annual interest rate of r, where r is expressed as a decimal. The amount of money A in the account after t years is given by
A
=
P
(
1
+
r
/
12
)
12
t
. Use this equation to complete the following exercises.
64. Determine the time it takes an investment of $20,000 to increase to $22,000 if it is placed in an account that is compounded monthly with an annual interest rate of 2.5%.
Question
Consider the graph of f(x) below. Over what open interval is f'(x) positive? Give your answer in interval notation.
Provide your answer below:
0
Question
Find the open interval(s) of f(x), graph given below, where f'(x) is negative.
-3-2-1
1 2
4
5
6
Give your answer in interval notation. For example, (2, 4) U (6,∞).
Provide your answer below:
Chapter 1 Solutions
Pearson eText Calculus: Early Transcendentals -- Instant Access (Pearson+)
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