maura2mconroy0547 maura2mconroy0547

02-03-2017
Mathematics

contestada

which of the following is a quadratic equation that has roots of 2.5 and 2/3

a. 5x^2+11x-7=0

b. 6x^2-19x+10=0

c. 5x^2+11x-10=0

d. 6x^2+19x-10=0

Respuesta :

wolf1728 wolf1728

05-03-2017

Multiply
(x-2.5) * (x-.66666)
x^2 - 3.1666 x + 1.6666
Multiplying both sides by 6
6x^2 - 19x + 10
answer is b

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