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wlad13 [49]
3 years ago
13

Will mark brainliest if correct! Tysm

Mathematics
2 answers:
ahrayia [7]3 years ago
8 0

Answer:

80

Step-by-step explanation:

A pentagon's angle all add up to 540

460+x=540

x=80

Mariulka [41]3 years ago
5 0

Answer:A 80

Step-by-step explanation:

So a square is all 90° angles so take 90 from 140 and get 50 and 50+50=100 and a triangles thing adds up to 180 so 180-100=80 (I’m not good at explaining sorry)

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Work out the size of angle x forty two degrees and one hundred and one hundred and twenty three degrees
Snezhnost [94]

Answer:

x = 28

Step-by-step explanation:

With 3 angles I'm guessing its a triangle so all triangles equal 180 degrees

42 + 110 = 152

180 - 152 = 28

3 0
3 years ago
Pls help I need to find out the equation
Sauron [17]

Answer:

2x + 1.5y = 15

Step-by-step explanation:

2x + 1.5y = 15 because just plug in the variables.

7 0
4 years ago
Read 2 more answers
What is the length of the missing leg
Shtirlitz [24]

Answer:

12

Step-by-step explanation:

Using the pythagorean theorem, we know that a^2+ b^2=c^2

In our case, we know b, which is 5 and c which is 13.

If we plug that into the equation, we get a^2+ 5^2 = 13^2

Next, we simplify the equation. a^2 + 25 = 169

Then we subtract 25 from 169. 169 - 25 = 144.

Lastly, we do the square root of 144 and we get 12 which is the missing side.

7 0
3 years ago
Read 2 more answers
-4²+6·-4+9<br> please!!! answer
kumpel [21]
It’s: -31
when you are simplify this expression you get -31


6 0
3 years ago
(10 points)What is the sum of the first ten terms of the sequence 4,-12, 36, -144...
MrRissso [65]

Answer:

b

Step-by-step explanation:

7 0
4 years ago
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