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algol13
3 years ago
10

Simplify the expression. - (m m + 3n - 13)

Mathematics
1 answer:
natulia [17]3 years ago
7 0

Answer:

=  -  {m}^{2}  - 3n + 13

Step-by-step explanation:

- (m \times m + 3n - 13)

m \times m =  {m}^{1}  \times m

{m}^{1}  \times  {m}^{1}  =  {m}^{1 + 1} =  {m}^{2}

- ( {m}^{2}  + 3n - 13)

=  -  {m}^{2}  - 3n + 13

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18. Given points A(1,5), B(-2,-1), C(1,1).<br>and D(3,5). what type of lines are AB<br>and CD?​
Lelechka [254]

Answer:

The line segments are parallel.

Step-by-step explanation:

First, I never have graph paper when it is needed so I suggest Geogebra.com.

Now slope is found by rise over run so I took the points on the graph and counted where they intersected with any other points on the line. AB was 2/1 which means 2. I did the same for the other line segment and found 2/1 : 2. so both of the slopes are the same so you have parallel lines.

4 0
3 years ago
What is the equation of a line which includes points (-5, 5) and (2, 5)?
sveta [45]
<h2>Hello!</h2>

The answer is:

The equation of the line which includes the points (-5,5) and (2,5) is:

y=5

<h2>Why?</h2>

To find the line which includes the points (-5,5) and (2,5) we can use the following equation:

y-y_1=\frac{y_2-y_1}{x_2-x_1}*(x-x_1)

So, using the points (-5,5) and (2,5), we have:

y-5=\frac{5-5}{2-(-5)}*(x-(-5))

y-5=\frac{0}{2+5}*(x-(-5))

y-5=0*(x+5)

y-5=0

y=5

We have that the equation of the line which includes the points (-5,5) and (2,5) is:

y=5

Have a nice day!

Note: I have attached a picture for better understanding.

8 0
3 years ago
Inverse functions <br><br><br>f (x) = -3x +2 find f -1 (7)
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y = f(x) \\  \\ x = f^{-1} (y)

Therefore, set y = 7
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3 years ago
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weqwewe [10]

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3 years ago
35 divided by 0.7 help me
Lerok [7]
35 divided by 0.7 is 50.
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3 years ago
Read 2 more answers
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