AnaBelle111
AnaBelle111
05-09-2017
Mathematics
contestada
Please find the value(s) of x.
Respuesta :
liemonder
liemonder
05-09-2017
-2x^2+50x+40=0
-2*(x^2-25x-20)=0
x^2-25x-20=0
complete square:
x^2-25x-20+156.25^2=0+156.25
x^2-25x+156.25^2=20+156.25
(x-12.5)^2=176.25
x-12.5=+/-sqrt(176.5)
x=12.5+/-sqrt(176.5)
Answer Link
VER TODAS LAS RESPUESTAS ( 16+ )
Otras preguntas
Jenny measured 1/4 cup of flour and 4/9 cup of flower how many cups did jenny measure give answer in reduced terms
Yearly expensive at a State University of increased from 14,000 to 18,500 in the last four years has been the average annual growth rate and expenses. If this g
Tara is saving for an overseas trip. Her taxable income is usually about $20 000. She estimates that she will need $5000 for the trip, so she is going to do som
what volume will 10g of carbon dioxide occupy at STP
Solve for the perimeter of the pentagon and each missing letter.
3x2 + y, x is 5 and y is 3
A gas has a volume of 3.00 L and a pressure of 75.4 kPa. When the volume expands to 4.00L and the pressure drops to 72.7 kPa, the gas temperature is 0 o C. What
Which line fits the data graphed below? Choose 1 answer: Choose 1 answer: (Choice A) A (Choice B) B (Choice C) C (Choice D) None of the lines
If your essay only refers to one text (story or poem), and you list the name of the story or poem in your introduction, you DO NOT need to include the author's
While a gas does 855 J of work on its surroundings, 1800 J of heat is added to the gas. Does the internal energy of the gas increase or decrease, and by how mu
