Solve the system of equations using matrices. Use Gauss-Jordan elimination.
A. {(2, 7, 2)}
B. {(-2, 7, 4)}
C. {(4, 7, -2)}
D. {(2, 2, 7)}
Answer: A
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At the given point, find the slope of the curve or the line that is tangent to the curve, as requested.x3y3 = 8, tangent at (2, 1)
A. y = 4x - 1
B. y = - 
x + 2
C. y = 4x + 1
D. y = 
x
Provide an appropriate response.To encourage an even flow of customers, a restaurant varies the price of an item throughout the day. From 6:00 P.M. to 8:00 P.M. customers pay full price. At lunch from 10:30 A.M. until 2:30 P.M. customers pay half price. From 2:30 until 4:30 customers get a dollar off the lunch price. From 4:30 P.M. until 6:00 P.M. customers get $5.00 off the dinner price. From 8:00 until closing time at 10:00 customers get $5.00 off the dinner price. Write a compound function to represent the cost of an item throughout the day for a dinner price of d.
What will be an ideal response?
Find the exact value by using a sum or difference identity.sin 255°
A. 
B. 
C. 
D. 
Integrate the power series for 
to obtain a power series representation for the function 
.
What will be an ideal response?