Write the augmented matrix for the system. 2x + 7z = 55 -2y + 4z = 14 4x + 8y + 3z = 89
A. 
B. 
C. 
D. 
Answer: D
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Solve the problem.An elliptical riding path is to be built on a rectangular piece of property that measures 10 mi by 6 mi. Find an equation for the ellipse if the path is to touch the center of the property line on all 4 sides
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Provide an appropriate response.In a graduated payments mortgage, the payments 
, while in an adjustable-rate mortgage, the rates 
.
A. become larger, may change up or down B. become smaller, may change up or down C. become smaller, likely will go up D. become larger, likely will go down
Write percents as decimals and decimals as percents.A record store downtown is offering 9% off all purchases for the month of December.
A. 0.09% B. 0.09 C. 9 D. 0.9
Simplify the square root. Assume all variables represent positive real numbers.
A. 
B. 
C. 
D. 