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DaniilM [7]
3 years ago
13

HELP PLEASE I NEED THIS HOMEWORK DONE BY TONIGHT!!

Mathematics
1 answer:
klio [65]3 years ago
5 0

Answer:

x = 50°

Step-by-step explanation:

the sum of the exterior angles of any polygon is 360°

2x-12 + 32 + 2x + x + 90 = 360

5x + 110 = 360

5x = 250

x = 50

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I need help with these two problems please
Debora [2.8K]

Problem 2

Plot point L anywhere that isn't on segment JK. Draw a line through point L. I find it helps to make the lines parallel.

Next, use a compass to measure the width of segment JK. Keeping this same width, transfer the nonpencil end of the compass to point L. Draw an arc that crosses the line through L.

Mark this intersection point M. Lastly, use a pen or marker to form segment LM and erase everything else of that line.

======================================================

Problem 3

The ideas of the previous problem will be used here. We copied segment JK to form congruent segment LM. So JK = LM.

The same steps will be used to form segment GN where GN = EF. In other words, segment GN is a perfect copy of segment EF.

If you repeat these steps again, you'll get another segment of the same length. This segment goes from point N to point H. So NH = GN = EF

Then we can say,

GH = GN + NH

GH = EF + EF

GH = 2*EF

7 0
3 years ago
If a factory can produce 800 newspaper in 15 minutes how many newspapers will it produce in 2 hours
Irina18 [472]

Answer:

it will produce 6400 newspapers

Step-by-step explanation:

800 x 8 = 6400

4 0
3 years ago
The matrix equation below represents a two variable linear system. Are there solutions? Explain.
almond37 [142]

Answer:

The coefficient matrix is singular, so there are no solutions or infinite solutions.

The two equations in the linear system are the same, so there are infinite solutions.

Yes, there are solutions

Step-by-step explanation:

9 0
3 years ago
Read 2 more answers
1.
Alex73 [517]

Answer:

2x + 7= 4x + 17

7=2x+17

-10=2x

-10/2=2x/2

x=−5

5 0
3 years ago
Is X-13=x+1 true or false
Black_prince [1.1K]

Answer: FALSE.

Step-by-step explanation:

Given the following equation provided in the exercise:

x-13=x+1

You need to solve for the variable "x".

In order to solve for "x" you can folllow the steps shown below:

1. You must apply the Addition property of equality and add 13 to both sides of the equation. Then:

x-13+(13)=x+1+(13)\\\\x=x+14

2. Finally you need to apply the Subtraction property of equality and subtract "x" from both sides of the equation. So you get:

x-(x)=x+14-(x)\\\\0=14\ (FALSE)

Therefore, as you can observe, the given equation has no solutions.

3 0
3 years ago
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