caencisorios18 caencisorios18

11-05-2021
Mathematics

contestada

Solve the following system of equations algebraically:
Y = x^2 + 8x – 9
Y = 2x + 7

Respuesta :

cromano2 cromano2

11-05-2021

use simultaneous equations:
2x + 7 = x^2 + 8x - 9
7 = x^2 + 6x - 9
16 = x^2 + 6x
+ or - 4 = 7x
answer is
-4/7 or 4/7

Answer Link

Otras preguntas

Find and interpret the range of the data. The range is___. The prices vary by no more than ___ $

Using a Punnett square, what genotypes would you expect in the F2 offspring? F1 generation F2 (option A) F2 (option B) Father Father Father A A A A A a Mother M

9 is added to a number and multiplied by 7. The result is 84.

Find the radius and area 16.8 cm

Calculate the concentration of NO2NO2 in an equilibrium mixture given that the concentration of N2O4=0.200MN2O4=0.200M and Keq=67.3Keq=67.3 for the reaction: 2N

Which statement does NOT describe a characteristic of squatter settlements? They are usually located in the center of commercial areas. They have reliable publi

HELP ME PLEASEEEEEEEEEEEE

WILL MARK BRAINLIEST Let Events A and B be described as follows: P(A) = doing yard work P(B) = it raining The probability that it will rain this weekend is 68%

4 Select the correct answer. Which of the equations below represents a line parallel to the yaxis? A. X= -y B. X= 4y C.x=y D.X= 4 HELP

the _____tool is used to move the selected text to the right of the page ( align text right. / Align text left)