jaylal5080 jaylal5080

12-03-2020
Mathematics

contestada

Solve systems of equations

-x^2-4x+y=0
-x^2+9x+y+13=0

Respuesta :

dannielle dannielle

12-03-2020

Answer:

I solve it by substitution

y=x^2+4x

-x^2+9x+(x^2+4x)+13=0

13x+13=0

13x=-13

x= -13/13

x= -1

y=x^2+4x=1-4

y= -3

Step-by-step explanation:

Answer Link

Otras preguntas

Let A U B = {a,b,c,d,e,x,y,z)andA n B = {b, e,y}. . a. If B - A = {x,Z}, then A=_________ b. If A - B = 0, then B =__________c. If B = {b,e,y,z), then A - B =_

scientific explanation that explains how oxygen and carbon dioxide travel within a seed

find the m A ..........

How does static electricity impact the world we live in

What does the fundamental theorem of algebra state about the equation 2x2−x+2 = 0?.

en base a los datos obtenidos de la encuesta aplicada

what is the atomic number of an element with a atomic weight of 77cwnd 55 neutrons? Please help fast!

Sarah uses 9.9 pints of blue paint and white paint to paint her bedroom walls. 3/5 of this amount is blue paint, and the rest is white paint. How many pints of

What is the slope of the line going through (-8,13) and (-7,9)? What is the point slope formula using (-8,13)? What is the point slope formula using (-7,9)?

The pancreas is one of the most important glands in the body. It has a lot to do with maintaining a healthy weight because it regulates which of these in the bo