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Irina18 [472]
3 years ago
6

What is the slope-intercept form for each equation in this system? Compare the slopes and y-intercepts to describe the graph of

the system.
3x - 4y = 28
4x + 10y = 20

Mathematics
1 answer:
aksik [14]3 years ago
8 0
This is the slope-intercept of 3x-4y=28

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Anyone know the answer ???
mafiozo [28]
Hello!

Since the angles are same side alternate angles they are equal to each other

60 - 2x = 70 - 4x

We solve this algebraically

Add 4x to both sides

60 + 2x = 70

Subtract 60 from both sides

2x = 10

divide both sides by 2

x = 5

Hope this helps!
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3 years ago
Determine for each number whether it is a rational number or irrational number
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What is the perimeter of the triangle below? Round to the nearest hundredth.
Keith_Richards [23]

You're going to need to use Pythagoras' theorem to work this one out!

As you know, the perimeter of a triangle is just all the lengths of the sides added up.

We'll start with side AC first. We can see that A is (-8, -4) and C is (-6, -2). That means to get from A to C, we need to go 2 units to the right, and 2 units up. Which means we have our two sides to work out the length from Pythagoras' theorem. 2² + 2² = c², c = √8.

Now we'll move onto side AB. We already know A is (-8, -4) from above, and B is (-7, -8). That means to get from A to B, we have to go 4 units down, and 1 unit to the right. So once again: 4² + 1² = c², c = √17.

Lastly, we'll work out side BC. We know that B is (-7, -8) and C is (-6, -2). That means to get to C from B, we have to go 1 unit to the right and 6 units up. So, again: 1² + 6² = c², c = √37.

Now that we have all of our lengths, we simply just add them up!

√8 + √17 + √37 ≈ 13.03 units.

(I've also attached something to help you visualise how I worked it out.)

6 0
3 years ago
Will give BRAINEST
Svetlanka [38]
X-y=2 (*-2) --> -2x+2y=-4
2x+3y=14 
------------------
2x+3y=14 
 -2x+2y=-4
------------------
5y=10
y=2


4 0
3 years ago
Read 2 more answers
Another name for the x axis
aalyn [17]

Answer:

axis of abscissas

Step-by-step explanation:


8 0
3 years ago
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