Evaluate the integral 
.
?
A. 
B. 
C. 
D. 
E. 
Answer: C
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Solve the problem.A moving firm charges a flat fee of $45 plus $40 per hour. Let y be the cost in dollars of using the moving firm for x hours. Find the slope-intercept form of the equation.
A. y = 40x + 45 B. y = 45x - 40 C. y = 40x - 45 D. y = 45x + 40
Solve the problem.Charles wants to retire in 17 years. At that time he wants to be able to withdraw $22,000 at the end of each year for 19 years. Assume that money can be deposited at 12% per year compounded annually. What exact amount will Charles need in 17 years?
A. $164,327.68 B. $204,619.58 C. $162,047.16 D. $159,492.74
Write an equation using the variable x to represent any unknown quantity. Do not solve the equation.A weatherman reports that since 6:00 am this morning the temperature has dropped by 
to the current temperature of 
Write an equation for which the solution is the temperature at 6:00 am.
A. x + 12 = 40 B. x - 12 = 40 C. x + 40 = 12 D. x - 40 = 12
Solve.Charlotte invested $6000 in money market funds. Part was invested at 15% interest, the rest at 11% interest. At the end of each year the fund company pays interest. After one year she earned $764 in simple interest. How much was invested at each interest rate?
A. $2600 at 15%; $3400 at 11% B. $2400 at 15%; $3600 at 11% C. $2600 at 11%; $3400 at 15% D. $2400 at 11%; $3600 at 15%