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QveST [7]
3 years ago
10

Do systems of equations with different slopes and different y-intercepts have more than one solution

Mathematics
1 answer:
lara [203]3 years ago
7 0
They have more than 1 soulution 
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Simplify 7y+7-8(y-7)
Salsk061 [2.6K]

Answer:

-y + 63

Step-by-step explanation:

Let's start like by solving the order of operations, and then add our Y's:

7y + 7 + −8y + 56

Adding:

+63 - y

Simplifying:

-y + 63

Thus, our answer is -y + 63

8 0
3 years ago
Read 2 more answers
David proved the Law of Cosines with reference to ∆ABC using a different method. Arrange the steps of his proof in the correct s
irinina [24]

image of solution attached below

7 0
3 years ago
Find the value of c such that the expression is a perfect square trinomial
Alika [10]

Answer:

c = 4

Step-by-step explanation:

In a perfect square trinomial, the following relationship is true:

(x+y)^2=x^2+2xy+y^2

In order for the given expression to be a perfect square trinomial:

x^2=x^2\\4x=2xy\\c=y^2

Solving for 'c':

4x=2xy\\y=2\\c=y^2=2^2\\c=4

Therefore, c must be equal to 4.

6 0
3 years ago
Please help, will give brainliest and thanks :) Please attach any thing if needed.
Dmitry_Shevchenko [17]

Answer:

First of all, I expect you fulfill your word and give what you promise... ha ha just kidding, I already solved a question like this one, please see below explanation.

1. Tessellation is the covering of a surface with pattern(s) of flat shapes so that there are no overlaps or gaps. It is also called Tiling.

2. Triangles, Squares, and Hexagons are regular polygons.

3. Previous three shapes create a regular tessellation pattern because all their sides and all their angles are the same. the intersection point of the interior angles is called "Vertex". For a regular tessellation, the pattern is identical at each Vertex.

Unlike the triangle and quadrilateral case, the Pentagon's angle sum of 540° is not helpful when trying to fit a bunch of Pentagons around a vertex. Therefore, even though the Pentagon is a regular polygon, it cannot tessellate.

4. See attached screenshot of 3 tessellations created with Tessellation Artist Software online.

7 0
3 years ago
2(3x+2)=2x+28<br><br> What is x?
kherson [118]

Answer:

x = 6

Step-by-step explanation:

<u>Step 1:  Distribute </u>

2(3x + 2) = 2x + 28

(2 * 3x) + (2 * 2) = 2x + 28

(6x) + (4) = 2x + 28

<u>Step 2:  Subtract 2x from both sides </u>

6x + 4 - 2x = 2x + 28 - 2x

4x + 4 = 28

<u>Step 3:  Subtract 4 from both sides </u>

4x + 4 - 4 = 28 - 4

4x = 24

<u>Step 4:  Divide both sides by 4 </u>

4x / 4 = 24 / 4

<em>x = 6 </em>

Answer:  x = 6

5 0
3 years ago
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