Answer the question.Use the equation 2x2 + 5x = c to explain how to solve a quadratic equation by completing the square.
What will be an ideal response?
Divide both sides of the equation by 2. Add 
to both sides of the equation. Take the square root of both sides of the equation, being careful to remember to use the positive and negative square roots of the right side. Then add - 
to both sides of the equation.
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Let a and b be the lengths of the legs of a right triangle, and let c be the length of the hypotenuse. Values of two of the three lengths are given. Find the third length.b = 48, c = 52
A. a = 400 B. a = 20, -20 C. a = 80 D. a = 20
Solve the problem.Gina is buying a used car that has an advertised price of $3,500. She is buying the car on credit and must make a down payment of $900 and 30 monthly payments of 
What is the total cost of the car?
A. $3,614 B. $4,206 C. $4,320 D. $4,434
Divide and simplify.
÷ 
A. 
B. 
C. 
D. 
Solve the problem.A furniture manufacturer decides to make a new line of desks. The table shows the profit, in thousands of dollars, for various levels of production. 
Find a quadratic function to model the data, and use the model to predict the profit if 450 chairs are made. Round to the nearest thousand.
A. $44,000 B. $42,000 C. $45,000 D. $40,000