Purchase Solution

Quadratic equations and inequalities

Not what you're looking for?

Ask Custom Question

Solve each equation:

1) 2y^2 - 3y -6 = 0
2) (x-10)(x-2) = -20

Find all real or imaginary solutions for each equation:

1) W^2=-225
2) 3v^2+4v-1=0
3) sqrt (7x+29) = x+3

Word Problem

Time to Swing. The period T (time in seconds for one complete cycle) of simple pendulum is related to the length L (in feet) of the pendulum by the formula 8T^2=(pi)^2L. If a child is on a swing with a 10-foot chain, then how long does it take to complete one cycle of the swing?

Please help me better understand the above. I am having a hard time with the concept and I am note sure my answers are correct. Thank you so much for all your help.

Purchase this Solution

Solution Summary

I have solved five problems involving solutions to quadratic equations and one word problem. Solution is well written with clear steps.

Solution Preview

Following is the text part of the solution. Please see the attached file for complete solution. Equations, diagrams, graphs and special characters will not appear correctly here. Thank you for using Brainmass.

Note: I am using the formula for the solution of a quadratic equation.

Solutions of a quadratic equation of the form ax^2 + bx + c = 0 is given by:

x = [-b +/- sqrt(b^2 - ...

Purchase this Solution

Free BrainMass Quizzes
Exponential Expressions

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

Multiplying Complex Numbers

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

Geometry - Real Life Application Problems

Understanding of how geometry applies to in real-world contexts

Know Your Linear Equations

Each question is a choice-summary multiple choice question that will present you with a linear equation and then make 4 statements about that equation. You must determine which of the 4 statements are true (if any) in regards to the equation.

Probability Quiz

Some questions on probability