If the function is one-to-one, find its inverse. If not, write "not one-to-one."{(-7, -7), (-6, -7), (-5, -3), (-4, -9)}
A. {(-7, -7), (-6, -3), (-5, -9)}
B. not one-to-one
C. {(-7, -9), (-7, -3), (-5, -6)}
D. {(-7, -7), (-9, -3), (-5, -6)}
Answer: B
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Use the method of undetermined coefficients to solve the differential equation.
+ 8 
+ 12y = -6 - ex; 
= 
and y = - 
when x = 0
A. y = 
e-2x - 
e-6x + 
- 
ex
B. y = 
e-2x + 
e-6x - 
- 
ex
C. y = 
e-2x - 
e-6x - 
+ 
ex
D. y = 
e-2x - 
e-6x - 
- 
ex
Determine whether f(x) represents a polynomial function.f(x) = 8x - 6
A. No B. Yes
Find the dimension of the matrix. Tell if the matrix is a square, column, or row matrix, when applicable.
A. 3 × 2 B. 2 × 3 C. 2, 6, 2, -7, -2, 5 D. 6
Solve the problem.Elaine and Dan want to install wall-to-wall carpeting in their family room. The floor of the rectangular room is 12
feet long and 12
feet wide. How much will it cost to carpet the room if the carpet costs $14.11 per square yard? (Round your answer to the nearest cent.)
A. $19,624.19 B. $242.27 C. $2180.47 D. $80.76