Solve the system by using the inverse of the coefficient matrix. 10x1 - 4x2 = -6 6x1 - x2 = 2
A. (4, 1)
B. (-4, -1)
C. (-1, -4)
D. (1, 4)
Answer: D
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Solve.An elliptical trainer is an exercise machine in which your foot moves in an elliptical path. On a typical machine, the length of the stride is about 22 inches and the height is varies from 2 to 6 inches depending on the settings. Write the equation for the path your foot takes if the total length of the stride is 22 inches and the total height is 4 inches.22 inches4 inches 
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Solve the problem.The average cost of a 4-year college education is projected to be $100,000 in 16 years. How much money should be invested now at 1%, compounded quarterly, to provide $100,000 in 16 years?
A. $100,000.00 B. $96,083.74 C. $72,643.91 D. $85,231.40
Solve the problem.Julio buys a bike which has a cash price of $280. He puts $30 down, and agrees to pay 12 payments of $24. After 8 payments he gets some birthday money and decides to pay off his loan. Find the unearned interest and the amount to pay off the loan.
A. $4.87, $91.13 B. $7.28, $88.72 C. $3.34, $92.66 D. $5.14, $90.86
Simplify the expression.
?
?
A. 
B. ?
C. ?
D. ?