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 is the answer to 2(x - 3) =b2 please explain too!

Please select the word from the list that best fits the definition Creating a song to remember when Penicillin was discovered A.repetition B.acronyms C.keyword

Sarah is hungry and it's almost lunch time. She is trying to be the fattest she could get. Please help her decide what to eat that would put in the most calorie

Scientists have discovered that the oklahoma salamander, eurycea tyerensis develops into its adult form in streams where the streambeds are made of fine, tightl

Vascular plants, like this one, take in water through the roots. How does the water get to the leaves, where photosynthesis happens?

What is the full form of the acronym VPN

how do asides work in conjunction with dramatic irony

Trees in the mid-west change colors and lose their leaves in the cooler parts of the year. What kinds of trees lose their leaves? A) deciduous B) evergreen

What is the volume of the right rectangular prism

What is the total surface area ?