Review for quiz on Feb 17th
1. Solve: ln(2x ­ 3) + ln(x + 6) = 3
2. A cake is removed from an oven at 3500F and cools to 1200F after 20 min. in a room at 650F. How long will it take to cool to 900F?
3. Find the amount A accumulated after investing a principal P after t years at an interest rate r compounded k times a year.
P = $3500, r = 5%, t = 10, k = 4
4. Find the amount A after investing a principal P t years at an interest rate r compounded continuously.
P = $3350
r = 6.2%, t = 8
1
5. Find the future value when R = $300, r = 6%, t = 12 and k = 4
6. What interest rate compounded monthly is required for an $8500 investment to triple in 5 years?
7. What is Ericka's monthly payment for a 3­
year $4500 car loan with an APR of 10.25% from People's Bank?
2
8. a. Convert to Decimal form: 35024'
b. Convert to DMS: 49.70
9. Convert from DMS to Radians:
1500
11.830 75030'
Convert from radians to Degrees
3π/5
13π/20
1.3
10.Use the appropriate arc length formula to find the missing information.
s
r
θ
2.5 cm
?
π/3 rad
4 in
7 in
?
3