Determine whether the relation defines y as a function of x. Give the domain.y = - 
A. Not a function; domain (-?, 7) ? (7, ?)
B. Not a function; domain (-?, 0) ? (0, ?)
C. Function; domain: (-?, ?)
D. Function; domain (-?, 0) ? (0, ?)
Answer: D
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Lured by the ad in the illustration below, a woman invested $13,300, some in a money market account and the rest in a 5-year CD. How much was invested in each account if the income from both investments is $1,174 per year? First Republic Savings and Loan AccountRateNOW5.5%Savings7.5%Money market8.0%Checking4.0%5-year CD9.0%
A. $2,900 in the money market account, $10,400 in the CD B. $2,100 in the money market account, $11,200 in the CD C. $2,800 in the money market account, $10,500 in the CD D. $2,600 in the money market account, $10,700 in the CD E. $2,300 in the money market account, $11,000 in the CD
Find the equilibrium solution of the equation of change 
. Consider only positive values of x. Round your answer to two decimal places, if nessary.
?
A. 
B. 
C. 
D. ?
Find the component form of the indicated vector.Let u = 
. Find 9u.
A. 
B. 
C. 
D. 
Find the length of the arc on a circle of radius r intercepted by a central angle ?. Round answer to two decimal places.r = 10 centimeters, ? = 70°
A. 11 centimeters B. 12.22 centimeters C. 9.78 centimeters D. 13.44 centimeters