Use the Gauss-Jordan method to solve the system of equations.x + 2y + 5z = -6 5y + 5z = 5 z = -1
A. No solution
B. (-5, 2, -1)
C. (-1, 2, -5)
D. (-5, -1, 2)
Answer: B
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Divide.
A. r2 + 5r + 4
B. 3r2 - 4r - 5
C. 3r2 + 4r + 5
D. 3r2 + 4r + 
Provide an appropriate response.Consider the linear function f(x) = 5x + 20. What is the domain and range of this function? Now, suppose the function represents the relationship between studying time and grades on an exam. The variable x represents the number of hours spent studying and f(x) represents the grade on the exam. Does this change the domain and range? If so, what is the new domain and range and why is it different?
What will be an ideal response?
Factor, if possible.x3 - 64
A. (x + 4)(x2 - 4x + 16) B. (x - 4)(x2 + 4x + 16) C. (x + 64)(x2 - 1) D. (x - 4)(x2 + 16)
Solve the equation.2(x + 3) = 3 - 4(x + 3)
A. 
B. 
C. 15
D. - 