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

You should do all of the following when completing a job application except _____.

Which of the following cells can't be recharged A. Primary cell B. Electrode cell C. Storage cell D.Wet cell

Why does finny look small and old to gene when gene finishes running and finds reserves of energy he never knew he had? a. finny is hunched over and far away fr

An astronaut standing on a platform on the moon drops a hammer. The hammer falls 6m vertically in 2.7seconds. What is acceleration?

Which of the following mutations is evolutionarily important? After an injury, a replacement skin cell mutates during replication. A gene in an egg cell inserts

Explain the effects of exercises on your health-related components of fitness (flexibility, muscular strength and endurance, cardiovascular, and body compositio

How do you split an uneven number in half like 9

How do you simplify this expression?

Was coined in 1973 by biologist michael ghiselin (1973, and later popularized by the anthropologist john tooby and psychologist leda cosmides in the early 1990s

Number 19 please ???