ssusmanw ssusmanw

24-01-2017
Mathematics

contestada

let 3x^2+kx+4. determine all values of k such that the quadratic equation f(x) =0 has one real root

Respuesta :

williambusby williambusby

24-01-2017

//I'll use the discriminant rule for this.
b^2 - 4ac = 0 when one real root

Therefore, k^2 - 4*3*4= 0
k^2 = 48
k= +-4√3

Answer Link

Otras preguntas

In 1848 elizabeth cady stanton and lucretia mott organized the seneca falls convention to address the issue of equal rights for women. the convention produced a

During a sale, a dress decreased in price from $90 to &63. What was the percent of decrease?

Two exterior angles of a triangle equal 100° and 150°. Find all the interior angles

Lee and Celia are lab partners. While Celia pours a chemical into a graduated cylinder, some of the chemical splashes onto her arm. What should happen next? Lee

Deviation is the difference between any value and the mean of the set. True. False.

Which of the following should be filed immediately after bogart

the heart of a newborn baby can beat up to 130 times per minute. At this rate, how many seconds would it take to beat 26 times?

complete the solution of the equation. find the value of y when equals -1. -2x-5y=-13

The average number of rainy days in Seattle, Washington is listed below: Month January February March April Rainy days 18 16 17 14 If the data was only accurat

gabriel put 6000 in a 2 year CD paying 4% interest, compounded monthly. After 2 years , he withdrew all his money. what was the amount of the withdrawal?