Find the line of symmetry.f(x) = -3x2 - 24x - 53
A. x = 5
B. x = -5
C. x = -4
D. x = 4
Answer: C
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Solve the problem.The total cost of replacing the front door is $447.03. Write the cost of the door in words.
A. seven hundred forty-four dollars and three cents B. four hundred forty-seven dollars and three cents C. four hundred three dollars and forty cents D. four hundred and forty dollars and three cents
Provide an appropriate response.Suppose that you are solving a system of three linear equations by the Gauss-Jordan method and obtain the following augmented matrix. 
What row transformation would you perform next?
A. Add -8 times row 1 to 7 times row 3.
B. Add -8 times row 2 to row 3.
C. Multiply row 3 by 
.
D. Add 
times row 2 to row 3.
Solve the quadratic equation by any method.(x - 4)(x + 3) = 8
A. {-4, 5} B. {5} C. {-4} D. {-5, 4}
Write the phrase as an algebraic expression and simplify if possible. Let x represent the unknown number.The difference of ten and a number, divided by two.
A. 
- 10
B. 
C. 
D. 10 - 