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zysi [14]
3 years ago
9

Anybody good at math?1) 2x + 8y = 20y=2​

Mathematics
2 answers:
kondor19780726 [428]3 years ago
7 0

Answer:

2x+8y=20;y=2  

Solution :

{x,y} = {2,2}  

 

System of Linear Equations entered :

  [1]    2x + 8y = 20

  [2]    y = 2

Graphic Representation of the Equations :

   8y + 2x = 20        y = 2  

 

 

Solve by Substitution :

// Solve equation [2] for the variable  y  

  [2]    y = 2  

// Plug this in for variable  y  in equation [1]

  [1]    2x + 8•(2) = 20

  [1]    2x = 4

// Solve equation [1] for the variable  x  

  [1]    2x = 4  

  [1]    x = 2  

// By now we know this much :

   x = 2

   y = 2

We are done

Solution :

{x,y} = {2,2}

Step-by-step explanation:

marysya [2.9K]3 years ago
4 0

Answer:

Step-by-step explanation:

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A frozen dinner is divided into 3 sections on a circular plate with a 12-inch diameter. The central angle formed by the peach co
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Answer:

D. 5 inches

Step-by-step explanation:

Given:

A frozen dinner is divided into 3 sections on a circular plate with a 12-inch diameter.

That means complete angle having 360° is divided into 3 section.

The central angle formed by the peach cobbler is 105 degrees.

The central angle formed by the pasta is 203 degrees.

<u>Question asked:</u>

What is the approximate length of the arc of the section containing the peas?

<u>Solution:</u>

The central angle formed by the peas = 360° - 105° - 203°

                                                                = 52°

Ridius,r=\frac{Dameter}{2} =\frac{12}{2} =6\ inches

As we know:

Length\ of\ arc=2\pi r\times\frac{\Theta }{360}

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6 0
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Name a polygon that would have a
liubo4ka [24]

Answer:

The polygon has 43 sides . The polygon can be called 43 - gon or tetracontakaitrigon.

Step-by-step explanation:

In a regular polygon all the sides are equal and also all the angles are equal. The sum of the interior angle of a polygon can be calculated with the following formula;

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The sum of the interior angle should be less than 7500 and greater than 7201.

sum of interior angle = (n−2) × 180°

less than 7500 and greater than 7201 = (43 - 2) × 180

less than 7500 and greater than 7201 = 41 × 180

less than 7500 and greater than 7201 = 7380 °

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How to factor 6x^2+7x-10​
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