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Eddi Din [679]
3 years ago
10

Choose the graph that represents the equation y= (x+2)+2

Mathematics
1 answer:
creativ13 [48]3 years ago
3 0
The equation (x+2) as a parabola goes through the origin (0,0) but since there is a +2 outside.  You move this parabola up 2 on the y-axis
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32 is 40 percent of what number
sasho [114]
80...........................................?
7 0
3 years ago
Simplify the expression <br> 7x/9x
pantera1 [17]
<span>7x/9x = 7/9

hope it helps</span>
4 0
3 years ago
BRAINLIEST GUARANTEED, 20 points!!
N76 [4]

Answer:

x = -4, y = -4

Step-by-step explanation:

Normally, if it's allowed, I would use a graphing calculator which basically turns the equations (-2x+y=4) and (y=\frac{1}{2}x-2) into two straight lines, which represent the line of possible values that can fit into the equations. However, since you want the value of x and y in both equations to be the same, you have to look for the intersection of the two graphs. I use desmos.com/calculator to just type in the equations and the lines would be drawn automatically. By hovering over the equation, I can get the two values of x and y (the first value is for x, and the second one is for y).

Here is the working if you want to work it out by hand: (I'm using algebra for this one)

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

y=\frac{1}{2}x-2 ---------------------------------- Equation 2

Substitute Equation 2 into Equation 1:

-2x+\frac{1}{2}x-2=4

Simplify:

-1\frac{1}{2}x-2=4

-1\frac{1}{2}x=4+2

-1\frac{1}{2}x=6

1\frac{1}{2}x=-6

\frac{3}{2}x=-6

3x=-6×2

3x=-12

x=-12÷3

x=-4 ------------------------------------ Equation 3

Substitute Equation 3 into Equation 1:

-2(-4)+y=4

Simplify:

8+y=4

y=4-8

y=-4

Thus, x=-4, y=-4

8 0
3 years ago
Which equation describes a line perpendicular to y=8x-9 that passes through the point (9,-9)?
Margaret [11]
The answer is G. Perpendicular lines have opposite reciprocal slopes
6 0
3 years ago
The area of a rectangular wall of a barn is 168 square feet. Its length is 10 feet longer than twice its width. Find the length
Katen [24]
So area is 168 sq ft

That means that length * width = 168 sq ft
Since length  = 10 + 2 w

we get (10+2w)(w)  = 168

Multiply it out and you get 2w^2 + 10w - 168 = 0

This is a quadratic equation. You can use the formula here, but i'll just tell you the answer

w = -12,  or 7
since it can't equal -12 (ever heard of a barn with a length of -12?), you figure out the answer is 7.

If the width is 7, then the length is 10+2(7) = 24.

Have a nice day!
8 0
3 years ago
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