For Exercises 61-70, use the model A = P e r t or A = P ( 1 + r n ) n t where A is the future value of P dollars invested at interest rate r compounded continuously or n times per year for t years. (See Example 11) 65. An $8000 investment grows to $9289.50 at 3% interest compounded quarterly. For how long was the money invested? Round to the nearest year.
For Exercises 61-70, use the model A = P e r t or A = P ( 1 + r n ) n t where A is the future value of P dollars invested at interest rate r compounded continuously or n times per year for t years. (See Example 11) 65. An $8000 investment grows to $9289.50 at 3% interest compounded quarterly. For how long was the money invested? Round to the nearest year.
For Exercises 61-70, use the model
A
=
P
e
r
t
or
A
=
P
(
1
+
r
n
)
n
t
where A is the future value of P dollars invested at interest rate r compounded continuously or n times per year for t years. (See Example 11)
65. An $8000 investment grows to $9289.50 at 3% interest compounded quarterly. For how long was the money invested? Round to the nearest year.
Use Pascal's triangle to expand the binomial
(6m+2)^2
Listen
A falling object travels a distance given by the formula d = 6t + 9t2 where d is in feet
and t is the time in seconds. How many seconds will it take for the object to travel
112 feet? Round answer to 2 decimal places. (Write the number, not the units).
Your Answer:
Solve by the quadratic formula or completing the square to obtain exact solutions.
2
e
104
OA) -16±3√6
B) 8±√10
O c) -8±√10
OD) 8±3√√6
U
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