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

Thanks for the help if answer :) Which of the following describes the electron sharing between hydrogen and flourine? A. Hydrogen and Florine share one electron

When did people begin to notice that coastlines of continents fit together like puzzle pieces? A. when satellites began taking pictures of Earth from space B.

How do you think the Kennan May have influenced the Truman doctrine

Which type of heat transfer happens within a material or between materials that are touching? 1: Convection Current 2:radiation 3:conduction 4: convection

From where does the national executive get its powers?

Please answer this correctly

0.2 4/12 3/12 which does not belong with the others

The type of leader who came to power in Greece around 600 B.C. was Answer :Just took the test c. tyrant. c. tyrant.

garcia has 1 more than four times the number of marbles than quincy has. the difference in the amount of marbles is 19

What is the equation of the vertical asymptote of g(x)=4log3(x−2)+5 ? Enter your answer in the box. x =