Toothpickboy4452 Toothpickboy4452

03-07-2018
Mathematics

contestada

Suppose that a is a nonzero constant for which the equation ax^2+20x+7=0 has only one solution. find this solution.

Respuesta :

konrad509 konrad509

03-07-2018

[tex]\Delta=0\\\\ \Delta=20^2-4\cdot a\cdot7=400-28a\\ 400-28a=0\\ 28a=400\\ a=\dfrac{400}{28}=\dfrac{100}{7} [/tex]

Answer Link

Otras preguntas

(HELP PLSS) Renaissance is an Italian word that means "to celebrate." True False

Find the approximate length of the bolded arc.

Why is Alpha Centauri B Appear smaller than the sun

Let f(x) = x-9 Find (f o f)(x) and its domain (f o f)(x) =

This expression represents the average cost per game, in dollars, at a bowling alley, where n represents the number of games: . What is the average cost per gam

Read this post from the US Department of Education's blog. What two effective blog elements are clearly shown in the blog post?

A). You plan to invest $1978 in an account with two different options. Option 1 earns 8.5% annually, with interest to be compounded continuously. How much money

How can advocacy help in counselling field?

QUESTION 111 The diagram below shows a phase of meiosis Answer the questions thatfollowXх1.11 Give the name of the phase depicted in the above diagram(2)1.12 Gi

I need help with this problem