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 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

FOR BRAINLIEST!!! HURRY THOUGH ONLY HAVE 5 MINS!! Of all the water on the earth, only about 3% is fresh water. 68% of all the freshwater is frozen as glaciers
why was the 54th massachusetts regiment famous
Under the fugitive slave law of 1850, a free white in the north could be sentenced to imprisonment and be forced to pay a fine for doing which of these? a.advoc
Plzzzzzzz Help I can’t figure it out
a-3=15 compare and contrast
what is required to bring about phase change?
Throughout the 1930s dictators seized control in many countries but not in A. Germany B. France C. Italy D. Japan
Who know the answer
Subtract 12h + 1 from 34h + 4 . Pick one of the following... 14h + 3 −14h + 5 −14h 14h + 5
Given the equation y = 5x - 1, what are the intercepts? x-intercept = -1 and y-intercept = 1/5 x-intercept = 1 and y-intercept = -1/5 x-intercept = and y-inter