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alex41 [277]
3 years ago
7

I WILL MARK BRAINIEST please answer question 5

Mathematics
2 answers:
aalyn [17]3 years ago
6 0

Answer:

a = 150

Step-by-step explanation:

A octagon is 1080 degrees. The half circles are showing which angles are the same. So all the red circles are 120 degrees. To find the green circles, multiply 120 by 4 for the total of the four angles and then subtract it from 1080:

120(4) = 480

1080 - 480 = 600

So 600 is the total of all the green half circles added together, so divide 600 with 4 because there are four green half circles.

600/4 = 150

Marat540 [252]3 years ago
4 0

Answer:

a = 150

Step-by-step explanation:

The sum of the internal angles of an octagon is 1080°.

4a+4(120)=1080 (There are four 120^{\circ} and 4 a^{\circ}, they sum to 1080°)

4a + 480 = 1080

4a = 600

a = 150

Hope this helps :)

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Ulleksa [173]
First one:

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when adding the like terms
look at the:
powers, (x^3 adds with x^3)
placehloder letter (x adds with x and y adds with y and so on)

-10m+2m^4-13m-20m^4
powers: m^1 and M^4
placeholders: all m


add
-10m-13m+2m^4-20m^4
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second one:
when multiplying exponents, you add with like
so if you multipliy
x^2yz^3 times x^4y^2z^2 thne you would get x^6y^3z^5
when multiply with coeficients
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2/3 times p^4 times y^3 times y^4 times s^5 times 6 times p^2 times s^3
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(2/3 times 6) times (p^4 times p^2) times (y^3 times y^4) times (s^5 times s^3)
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8 0
3 years ago
Answer ASAP!! There is only a blank circle on the left
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Step-by-step explanation:

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20. If a certain linear function f(x) is evaluated at 0, the answer is 4.
bija089 [108]

Answer:

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Step-by-step explanation:

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As we move from the first point to the second, x increases by 3 and y increases by 1.  Thus, the slope, m, of the line is m = rise / run = 1/3.

Use the slope-intercept equation:  y = mx + b.

If we use the data from the point (0, 4), we get:

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7 0
3 years ago
Question 18
My name is Ann [436]
( x-5 ) (x + 6 )
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x squared + 6x - 5x - 30

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6 0
3 years ago
Read 2 more answers
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elixir [45]
Thanks for your equation!

This problem seems tricky, but is pretty simple.

All we have to do is add:

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3 years ago
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