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

What happens when sugar is added to water?

While an economy is growing businesses tend to make large capital investments. TRUE FALSE

Factors of Eisenhower's foreign policy included: helping foreign nations recover from war financial aid to the Soviet Union aid in developing the Sino-Soviet P

Which part of the country did women have the least voting rights in 1919?

The boundary between two air masses that are moving parallel to each other is called a(n) _____.

The Roman Empire declined for many reasons we discussed in class. Explain what at least 3 of those reasons were and which of those reasons, in your opinion, do

Please help me with this government! :/

What is the probability of tossing 2 fair coins and having exactly 1 land tails side up?

Tara studies for 25 minutes each day. Which equation shows the relationship between the number of days Tara studies, d, and the total amount of time she studies

In fahrenheit 451 why does faber calls montag a hopeless romantic