Answer the question.You currently drive 360 miles per week in a car that gets 20 miles per gallon of gas. A new fuel-efficient car costs $12,000 (after trade-in on your current car) and gets 60 miles per gallon. Insurance premiums for the new and old car are $900 and $600 per year, respectively. You anticipate spending $1400 per year on repairs for the old car and having no repairs on the new car. Assuming that gas remains at $3.50 per gallon, estimate the number of years after which the costs of owning the new and old cars are equal.
A. 5.2 years
B. 4.7 years
C. 3.7 years
D. 4.1 years
Answer: C
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Decide if the given number is a solution to the given equation.3x = 12; 6
A. Yes B. No
On January 2, 2016, Christopher inherited a trust fund that he could use for college tuition. Christopher hopes to make five equal withdrawals of $40,000 each year for the next five years from the fund that will earn 10% compounded annually. The first withdrawal will be made on January 2, 2017. How much does he need to have invested in the fund on January 2, 2016, to be able to withdraw the needed amounts each year?
A. $151,631 B. $200,000 C. $244,204 D. $268,624
Complete the identity.
- 
= ?
A. 1 - sin ? B. -sec2 ? C. 0 D. 1
Express the sum or difference as a product of sines and/or cosines.sin (2?) - sin (4?)
A. 2 sin (3?) cos ? B. 2 cos (2?) cos (3?) C. -2 sin ? D. -2 sin ? cos (3?)