Estimate root of given equations, Mathematics

The positive value of k for which x2 +Kx +64 = 0 & x2 - 8x + k = 0 will have real roots .

Ans: x2 + Kx + 64 = 0

⇒ b2 -4ac > 0

K2 - 256 > 0

K > 16 or K < - 16                        ...............(1)

x2 - 8x + K = 0

64 - 4K > 0

⇒ 4K < 64

K < 16                                       ...............(2) From (1) & (2)  K = 16

 

Posted Date: 4/8/2013 3:29:38 AM | Location : United States







Related Discussions:- Estimate root of given equations, Assignment Help, Ask Question on Estimate root of given equations, Get Answer, Expert's Help, Estimate root of given equations Discussions

Write discussion on Estimate root of given equations
Your posts are moderated
Related Questions
Find out if the following set of vectors are linearly independent or linearly dependent. If they are linearly dependent get the relationship among them. Solution : Ther

Objectives :  After studying this unit, you should be able to : 1.   explain the processes involved in counting; 2.   explain why the ability to recite number names is no in

There are 20 defective bulbs in a box of 100 bulbs.if 10bulbs are choosen at random then what is the probability of there are just 3defective bulbs

how do I change this ratio to a fraction

A rectangles lenth is (x+4) and width is (x+3).By adding binomials give its perimiter

Problems Involving Motion - Word Problems: How far can a car travelling at a rate of 52 miles per hour travel in 2½ hours? Solution: Using Equation 13: s = vavt

Estimate the area between f ( x ) =x 3 - 5x 2 + 6 x + 5 and the x-axis by using n = 5 subintervals & all three cases above for the heights of each of the rectangle. Solution

6987+746-212*7665

Your factory has a machine for drilling holes in a sheet metal part.  The mean diameter of the hole is 10mm with a standard deviation of 0.1mm. What is the probability that any

You have been research for your statistics class on how nervous the American adults are in general, you have decided to use HINTS 2007 data set that has a scale (going from 0 to 24