carol94 carol94

03-11-2014
Mathematics

contestada

i need help with math 1010
completing the square
x^2-9x=10

Respuesta :

konrad509 konrad509

03-11-2014

[tex]x^2-9x=10|+20.25\\ x^2-9x+20.25=30.25\\ (x-4.5)^2=30.25\\ x-4.5=5.5 \vee x-4.5=-5.5\\ x=10 \vee x=-1[/tex]

Answer Link

Otras preguntas

What does the prefix amphi mean

EZ car rental charges $40 a day plus $.25 per mile Ace Rent-A-Car charges $25 a day plus $.45 per mile what number of miles result of the same cost for one day

gave me list of preposition word

A historian is studying urban history in Chicago in the early 1900s. She is studying the population changes and the activities that people did in their everyday

Rough-and-tumble play has been associated with the development of the _____ area of the brain since it helps children to regulate their emotions, practice socia

what's the specific heat of paraffin wax

When 12 is multiplied by 6, the result is what?

The following is the recipe to make one dozen muffins: 1 cups flour; 2 cups sugar; 2 tsps. baking powder; 1 egg; 1 cup Crisco; 1 cup skim milk; 1 cup blueberrie

When mary puts her finger into her newborn daughter's mouth, the baby pulls mary's finger into it. the baby is demonstrating the _____ reflex.?

if one angle in 130 and the other angle is (3x+5) what is the value of x