Purchase Solution

Several problems on quadratic equations

Not what you're looking for?

Ask Custom Question

1. Solve by completing the square.
x2 - 2x - 63 = 0
A) -9, 7
B) 9, 7
C) -9, -7
D) 9, -7

2. Solve. x2 - 75 = 0

3. Solve by using the quadratic formula. 3x2 = 11x + 4
A)

B)

C)

D)

4. The height h in feet of an object after t seconds is given by the function
h = -16t2 + 30t + 8.
How long will it take the object to hit the ground? Round your answer to the nearest thousandth.

5. Find the x-intercepts.
y = x2 + 3x - 10

6. The base of a 15-ft ladder is 8 feet away from the wall. How far above the floor is the top of the ladder? Give your answer to the nearest thousandth.
A) 10.557 feet
B) 12.689 feet
C) 14.990 feet
D) 11.668 feet

7. Match the graph with its equation.

A) y = -x2 - 1
B) y = -x2 + x
C) y = -x2 + 1
D) y = -x2 + 2x

8. The length of a rectangle is 4 cm more than 3 times its width. If the area of the rectangle is 95 cm2, find the dimensions of the rectangle to the nearest thousandth.

9. Find the vertex.
y = x2 - 20x + 4

10. Is the following trinomial a perfect square?
x2 - 12x + 36
A) Yes
B) No

Purchase this Solution

Solution Summary

Several problems on quadratic equations are determined. A step by step solution is provided to solve quadratic equations.

Solution provided by:
Education
  • BSc, Meerut University
  • MSc, Meerut University
  • MPhil, Institute of Advanced Studies
  • MSc, AIT
Recent Feedback
  • "Perfect, thank you so much!!! I will definitely request you in the future! You are amazing!"
  • "Thank you. "
  • "Thank you so much I have two more that I need your help with if your available."
  • "Thank you, I was wondering why you rejected me the first time."
  • "Thanks again."
Purchase this Solution


Free BrainMass Quizzes
Probability Quiz

Some questions on probability

Exponential Expressions

In this quiz, you will have a chance to practice basic terminology of exponential expressions and how to evaluate them.

Geometry - Real Life Application Problems

Understanding of how geometry applies to in real-world contexts

Multiplying Complex Numbers

This is a short quiz to check your understanding of multiplication of complex numbers in rectangular form.

Solving quadratic inequalities

This quiz test you on how well you are familiar with solving quadratic inequalities.