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OverLord2011 [107]
3 years ago
12

Find the value of x in the figure. A. 18 B. 33 C. 35 D. 41

Mathematics
1 answer:
kykrilka [37]3 years ago
3 0

Answer:

D 41

Step-by-step explanation:

remember, the sum of all angles in a triangle is always 180 degrees.

so, we have already 35 for one angle, that leaves 145 for the other two.

x + 2 + 2x + 20 = 145

3x + 22 = 145

3x = 123

x = 41

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Solving and graphing systems of equations
dusya [7]
Hey Jackson!

-4x + 3y = 3
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Ok so what we need to do is solving y= 2x + 1 for y.

So let's start by using the substitution method :)

Substitute 2x + 1 for y in -4x + 3y = 3

-4x+ 3y = 3

-4x + 3(2x + 1) = 3

-4x + (3)(2x) + (3)(1) = 3

-4x + 6x + 3 = 3

2x + 3 = 3

Subtract 3 on both sides

2x + 3 - 3 = 3 - 3

2x = 0

x = 0/2

x = 0

So now since we find the number for x, we gonna use it to help us find the value for y.

To find y, we need to substitute 0 for x in y = 2x + 1

y = 2x + 1

y = 2(0) + 1

y = 0 + 1

y = 1

Thus,

The answer is: y = 1 and x = 0

How to graph?

You need to go on the thing where they put the numbers. y is located on top which has the positive numbers. So when you get there, make a line that comes from the top right side all the way to the bottom left sides. Remember that y = 1 so the line must pass through 1

I am not good with explanation. So I'll leave the graph down below then you'll see what I am talking about :)

Let me know if you have any questions. As always, it is my pleasure to help students like you!


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3 years ago
The equation of the line of best fit of a scatter plot is y = ñ5x − 2. What is the slope of the equation?
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5, because  y = mx + b is the equation, with m being the slope and b being the y-intercept.
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What equation is equivalent to 9x - 3 = 729
Alexus [3.1K]

Answer:

hope it helps

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

First you will want to separate like variables, so (6, 5) and then (-2x, 4x)

Then you will use the signs to do the math. You can move everything to help visualize the solution easier.

6+5+4x-2x

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Because you cannot add or subtract a variable with a non variable, and both numbers are positive you end up with

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Answer:

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Step-by-step explanation:

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