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Vika [28.1K]
3 years ago
12

Please help me with this i don’t understand much

Mathematics
1 answer:
Alexus [3.1K]3 years ago
8 0

Answer:

See below

Step-by-step explanation:

Three lengths will be a triangle only if the sum of two sides is greater than the third side.

19+11 > 17

This is a triangle.

23+28> 52\\51>52\\51 \ngtr 52

This is not a triangle.

9+25> 34\\34>34\\34\ngtr 34

This is not a triangle.

13+14> 22\\27>22

This is a triangle.

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30 points!!!
AysviL [449]
<h3>Answer: The graph is shown in the attached image below</h3>

-2x means -2*x or "-2 times x" where x is a placeholder for any number you want.

To graph y = -2x, you just need two points. Each point is of the form (x,y)

Let's plug in zero as it is often the easiest to work with.

If x = 0, then -2*x = -2*0 = 0. Notice how I replaced x with 0 and simplified.

Therefore, if x = 0, then y = 0. We have (x,y) = (0,0) as one point on this line. I have marked it as point A in the graph.

Point B is (1, -2) and it is found by plugging x = 1 into the equation to get...

y = -2x

y = -2*1

y = -2

You could find other points, but two points is enough to draw a straight line through them. The slope of this line is -2 = -2/1. The y intercept is 0.

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4 years ago
Please help me answer this question, thank youuuu!
butalik [34]

Answer:

The one on the bottom: d^-1(x)=1/2*x +2

Step-by-step explanation:

4 0
4 years ago
What is the unit rate of 180 miles in 3 hours
Tems11 [23]
The unit rate would be:

180 mi/3h

=60 mi/h

Therefore the unit rate would be 60 miles per hour
4 0
3 years ago
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Six year old students at an elementary school we’re giving a 20 yard Headstart in a race the graph shows how far the average stu
Alexxx [7]
The answer is going to be (D)
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3 years ago
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I need help please?!!
Arisa [49]

Answer:9

Step-by-step explanation:

3(5-2)

15-6

9

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