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Vadim26 [7]
3 years ago
8

Select all equations whose graphs have a vertex with x-coordinate 2

Mathematics
1 answer:
iren2701 [21]3 years ago
8 0

Answer:

C

Step-by-step explanation:

because you have to foil then do -b/2a

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In a year group there 100 boys and 140 girls. Write as a ratio the number of boy to the number of girls. Give the answer in the
expeople1 [14]

no. of boys : no.of girls

100 : 140

to get the simplest ratio you gotta divide both with a common factor

Because both 100 and 140 share a common factor of 20

the simplest ratio will be

100/20 : 140/20

5:7

5:7 is the simplest ratio

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3 years ago
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Which of the following inequalities matches the graph? graph of an inequality with a solid line through the points (1, 4) and (2
Ganezh [65]

Is 5x +y greater than or equal to 1

6 0
3 years ago
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-2x + y = 0 <br><br> -7x + 3y = 2<br> ​
dsp73
This is a system of equations.
First, you set everything in terms of y.
Take the first equation and move set everything equal to y
y=0+2x
Since it’s 0, you don’t need to put it, so
y=2x works.
Then, you plug y=2x into the bottom equation, for the y.
-7x +3(2x)=2. You do this because now you have the same variable for both and it can be solved easily.
Then you can simplify.
-7x+3x = 2
Then combine like terms.
-4x = 2
Divide by -4 on each side.
x = -1/2
So, now that you have x, you can plug in your x-value back into the top equation.
-2(-1/2) + y = 0
Combine like terms
1+y=0
Get y by itself
y=-1
There you have it!
You can check by plugging in both values to any of the equations. We will use the top one here.
-2(-1/2) + (-1) =0
+1 + -1 = 0
It works!
So,
X= -1/2
Y= -1
Please rate me Brainliest answer :)
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3 years ago
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I need help to figure out this question
ololo11 [35]

I think it would be 16.95 Hope this help you in someway.

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Find the slope of the line through each pair of points for questions 21 to 39​
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Answer:

23,24,26,27 sorry if you get it wrong

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