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

the male japanese beetle breaks down female pheromones. what structure inside the male beetle breaks down the pheromone? a. mitocondria b. lysomes c. rough endo

The president of Peru improved the economy, but resigned in 2000 because _____.

List three of the five incidents from paragraphs 1-4 that the author uses to attract the reader's attention.

Where is energy stored in carbohydrates

who ever knows what is 30058x356

About _______ percent of the calories you take in are used for physiological functions like breathing, blood circulation, and digestion.

Add the two expressions. m + 6 and 4m + 2 Enter your answer in the box. plz help me

55 decreased by twice a number

what evidence supports the conclusion that this photograph was likely taken in the early 20th century rather than the late 19th century? A) the model of the car

What section of the kidney collects the urine??