lescoto8925 lescoto8925

13-01-2022
Mathematics

contestada

y=9-x
y-2x^2+4x+6

solve the simultaneous equation

Respuesta :

Scabbers Scabbers

16-01-2022

Step-by-step explanation:

9-x-2x²+4x+6

=15+3x-2x²

=-2x²+3x+15

D=b²-4ac

=3²-4×-2×15

=9+120

=129

x1= (-b+VD)/2a

=(-3+V129)/-4

=(3+V129)/4

x2= (-b-VD)/2a

=(3-V129)/4

Answer Link

Otras preguntas

The three major sections of the brain are the cerebrum, cerebellum and: A : cranium B :Medulla

_________ intelligence, which is based on the accumulation of information, skills, and strategies learned through experience, remains steady and in some cases a

The conflict over control of the fur trade resulted in the __________. A. American Revolution B. Louisiana Purchase C. French and Indian War D. British North Am

Two rental car agencies have different rates for their minivans for one day. Car company A: has a flat fee of $35 and 25 cents per mile. Car company B: has a fl

1 fourth times 1 eighth simplest form

The Sierra Nevada Mountains are located in the __________ ranges. A. Pacific B. Atlantic C. Rocky D. Appalachian

Determine the meaning of the bolded word in this sentence:

Bobby borrowed 500 at 12 percent simple annual interest . he paid back $680 pay off loan . how many years did it take Bobby to pay the loan ?

You have $22 in your bank account and deposit $11.50 each week. At the same time your cousin has $218 but is withdrawing $13 each week. When will your account

Bruce has a bottle that contains 60% of lemon juice and the rest water. The bottle has 1 liter of water. Part A: Write an equation in one variable that can be u