Solving Quadratic Equations: Quadratic Formula — Cumulative exam Answers

Last week, an office group spent $122 on 6 cheese pizzas and 4 salads. This week, the group spent $192 on 8 cheese pizzas and 6 salads. Let c represent the number cheese pizzas and s represent the number of salads. Which system of equations can be used to find the cost of one cheese pizza and one salad?

What is the product?

What is the value of ?

Joline is solving the equation 0 = x2 – 5x – 4 using the quadratic formula. Which value is the negative real number solution to her quadratic equation? Round to the nearest tenth if necessary.Quadratic formula: x =

Solve x2 + 10x = 24 by completing the square. Which is the solution set of the equation?

Which expression is equivalent to ?

At a farmer’s market, a basket of strawberries costs $20 and a basket of peaches costs $18. On Saturday, 23 baskets were sold and $430 collected. If x represents the number of baskets of strawberries and y represents the number of baskets of peaches, how many baskets of peaches were sold on Saturday?

How many solutions does this linear system have?y = x+ 2 6x – 4y = –10

What is the remainder when (x3 + 1) is divided by (x2 – x + 1)?

Which expression is a difference of squares with a factor of 5x − 8?

Which are differences of perfect cubes? Select two options.9a3- 27125a12 - 72216a6 - 27y38a15 - 27225a3 - 216

Which polynomial is prime?

Which expression is equivalent to –6x3 • x • y2 • y6?

Which polynomial is prime?

The equation x2 – 1x – 90 = 0 has solutions {a, b}. What is a + b?

What are the factors of 2x2 + 3x – 54? Select two options.2x – 92x – 62x + 6x – 6x + 6

Shannon graphed the system of equations.7x – 4y= –8y = x – 3What is the closest approximate solution to the system of equations?

Solve x2 + 12x = –11 by completing the square. Which is the solution set of the equation?

Which function has real zeros at x = –8 and x = 5?

What is the discriminant of the quadratic equation 2x + 5x2 = 1?