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exis [7]
2 years ago
11

PLS HURRY

Mathematics
1 answer:
Rus_ich [418]2 years ago
6 0

Answer:

x+y=-1

Step-by-step explanation:

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I would appreciate the help!!
nikdorinn [45]

Answer:

a. 0.1\ miles

b Slope: \frac{1}{10} or 0.1

Step-by-step explanation:

The equation of a line that passes through the origin is:

y=mx

Where "m" is the slope of the line.

By definition, Direct variation equations have the following form:

y=kx

Where "k" is the Constant of variation.

Then, you can conclude that:

m=k

a. Let be "d" the distance in miles that the train travels per gallon.

You can observe in the graph that when the train travels 10 miles, it uses 100 gallons. Then, you can set up the following proportion:

\frac{10}{100}=\frac{x}{1}

Solving for "x", you get:

x=\frac{1}{10}\\\\x=0.1

Then, it travels 0.1 miles per gallon.

b. The slope is also \frac{1}{10} or 0.1. To check this, you can subsitute the coordinates of the point (100,10) into y=mx and solve for "m" in order to find its value.

This is:

10=m(100)\\\\m=\frac{1}{10}

6 0
3 years ago
The degree of a vertex is <br><br> Help please
Nina [5.8K]

Answer:

is the number of graph edges which touch v

Step-by-step explanation:

To find the degree of a graph, figure out all of the vertex degrees.  The degree of the graph will be its largest vertex degree.   The degree of the network is 5.  

 

Once you know the degree of the verticies we can tell if the graph is a traversable by lookin at odd and even vertecies.  First lets look how you tell if a vertex is even or odd.


7 0
3 years ago
Simplify the given expression. (16x^2 + 15xy – 19y^2) – (3x^2 – 3xy)
ruslelena [56]

Answer:

-19 y^2 + 18 x y + 13 x^2

Step-by-step explanation:

Simplify the following:

16 x^2 + 15 x y - 19 y^2 - (3 x^2 - 3 x y)

Factor 3 x out of 3 x^2 - 3 x y:

16 x^2 + 15 x y - 19 y^2 - 3 x (x - y)

-3 x (x - y) = 3 x y - 3 x^2:

16 x^2 + 15 x y - 19 y^2 + 3 x y - 3 x^2

Grouping like terms, 16 x^2 + 15 x y - 19 y^2 - 3 x^2 + 3 x y = -19 y^2 + (15 x y + 3 x y) + (16 x^2 - 3 x^2):

-19 y^2 + (15 x y + 3 x y) + (16 x^2 - 3 x^2)

x y 15 + x y 3 = 18 x y:

-19 y^2 + 18 x y + (16 x^2 - 3 x^2)

16 x^2 - 3 x^2 = 13 x^2:

Answer:  -19 y^2 + 18 x y + 13 x^2

4 0
3 years ago
Read 2 more answers
Solve n=m+9 for m<br><br> what does m equal
alexandr1967 [171]

Answer:

m=-9+n

Step-by-step explanation:

you want to get m by itself so you subtract 9 on both sides. 9-9 crosses out and you get m by itself. Which leads you to m= -9+n

8 0
2 years ago
I need to simplify -3ab(a-5b)+2(a-4)+5
Iteru [2.4K]
Nlaleicodklqjdixkzkxknc uv
6 0
3 years ago
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