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Softa [21]
3 years ago
7

I need help with #2 help if u can

Mathematics
1 answer:
olga2289 [7]3 years ago
8 0

Answer:

Step-by-step explanation:

G

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There's four number of sides and two number of triangles what is the sum of the angle measures
jasenka [17]
The answer should be sixteen
3 0
3 years ago
PLEASE ANSWER ASAP !!!!
klemol [59]
At h=1 y=-2 so -2 hope it helps!
3 0
3 years ago
Graphing in Point-Slope Form y−y1=m(x−x1) <br> ​<br> Graph the equation y+7=−45(x−4) ?
nevsk [136]

Answer:

<h2>The graph is in the attachment.</h2>

Step-by-step explanation:

The point-slope form of an equation of a line:

y-y_1=m(x-x_1)

<em>m</em><em> - slope</em>

<em>(x₁, y₁)</em><em> - a point on a line</em>

The slope-intercept form of an equation of a line:

y=mx+b

<em>m</em><em> - slope</em>

<em>b</em><em> - y-intercept → (0, b)</em>

We have the equation in a point-slope form:

y+7=-\dfrac{4}{5}(x-4)

y-(-7)=-\dfrac{4}{5}(x-4)

Therefore we have one point: <em>(4, -7)</em><em>.</em>

<em>Convert to the slope-intercept form:</em>

y+7=-\dfrac{4}{5}(x-4)              <em>use the distributive property</em>

y+7=-\dfrac{4}{5}x+\left(-\dfrac{4}{5}\right)(-4)

y+7=-\dfrac{4}{5}x+\dfrac{16}{5}

y+7=-\dfrac{4}{5}x+3\dfrac{1}{5}          <em>subtract 7 from both sides</em>

y=-\dfrac{4}{5}x-3\dfrac{4}{5}

Put <em>x = -1</em><em> </em>to the equation:

y=-\dfrac{4}{5}(-1)-3\dfrac{4}{5}=\dfrac{4}{5}-3\dfrac{4}{5}=-3

Therefore we have the second point <em>(-1, -3)</em>.

3 0
4 years ago
How many solutions does y=2x+2,4x-2y=4 have?
Leni [432]
Write as a system y= 2 x + 2.4x - 2y = 4

{y = 4
{2x + 2.4x - 2y = 4

Substitute the value of y into the equation

2x + 2.4x - 2 x 4 = 4

Solve the equation

x= 30/ 11

A possible solution is

(x, y) = (30/11, 4)

Check the solution

4 = 2 x 30/11+ 2.4 x 30/11 - 2 x 4 = 4

Simplify the expression

4 = 4 = 4

The ordered pair is a solution

(x, y) = ( 30/11, 4)



8 0
3 years ago
What is the opposite of -9? :D
konstantin123 [22]
<h3>The answer is:</h3><h2>9</h2><h2 />

The opposite of a POSITIVE number is its NEGATIVE number.

The opposite of a NEGATIVE number is its POSITIVE number.

Therefore, the opposite of -9 is 9.

6 0
3 years ago
Read 2 more answers
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