3 years ago

Solve the system of equations: y = 3x y=x2-4

Mathematics

2 answers:

Evgesh-ka [11]3 years ago

8 0

Answer:

y=12 x=4

Step-by-step explanation:

I will be using the elimination method to solve this

*2 y= 3x

*3 y= 2x-4.

2y= 6x

- 3y= 6x-12

-1y= -12. y= 3x

/-1 /-1. 12= 3x

y=12. /3 /3

4=x

Lubov Fominskaja [6]3 years ago

3 0

Answer:

x = -4

y = -12

Step-by-step explanation:

Since y is 3x,

3x = 2x - 4

On solving we get x as -4

Substitute x and we get y as -12

You might be interested in

Que son las figuras planas

Alecsey [184]

It can be made through straight line or curved lines.

4 0

3 years ago

Find the midpoint of the segment with the following endpoints (-10,-1) and (-6,7)

Gala2k [10]

Answer:

(-8 , 3)

Step-by-step explanation:

(x1 , y1) (x2 , y2) = (-10 , -1) (-6 , 7)

$\frac{-6-10}{2}$ , $\frac{7-1}{2}$ -6 is going to be my x1 and -10 my y1

7 is going to be my x2 and -1 my y2

(-8 , 3)

7 0

3 years ago

5 tripled and another question is a number plus 14 equals to 9

hjlf

Answer:

5 tripled is 15, x=5

Step-by-step explanation:

14-9=5 which is the number you're looking for, and 3×5=15

3 0

3 years ago

Use the slope-intercept form equation for the line of fit, estimate the number of students who will be in the math club during t

stich3 [128]

Answer: It's 74

Step-by-step explanation: I just took the test, i hope it helps you guys.

7 0

3 years ago

G=-4x/3, solve for x

Vaselesa [24]

Answer:

-3/4 g =x

Step-by-step explanation:

g=-4x/3

Multiply each side by 3

3g = -4/3 x *3

3g = -4x

Divide each side by -4

3/-4 g = -4x/-4

-3/4 g =x

4 0

3 years ago