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lozanna [386]
3 years ago
11

Number one and number two

Mathematics
1 answer:
luda_lava [24]3 years ago
6 0
The sum of the angles of an n-sided polygon is (n-2)×180°

For a 30-gon, it would be 28x180 = 5040, answer B

Second question is more of a trick question. Exterior angles always add up to 360. So answer H.


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Solve x-3/6 divided by 3-x/2 Please show work
Nataly_w [17]
\cfrac{x-3}{6}: \cfrac{3-x}{2}  = -\cfrac{3-x}{6}*\cfrac{2}{3-x}  =- \cfrac{2}{6}=- \cfrac{1}{3}
4 0
3 years ago
What is the answer to 18×524
adoni [48]
Tha answer for the problem is 9,432
4 0
3 years ago
5 + 8n = 7(-7 + 4n) -6
Luba_88 [7]

Answer:

n = 3

Step-by-step explanation:

Given

5 + 8n = 7(- 7 + 4n) - 6 ← distribute parenthesis on right side

5 + 8n = - 49 + 28n - 6 ( subtract 28n from both sides )

5 - 20n = - 55 ( subtract 5 from both sides )

- 20n = - 60 ( divide both sides by - 20 )

n = \frac{-60}{-20} = 3

6 0
3 years ago
Find the value of each variable in the circle to the right. The dot represents the center of the circle.
MrMuchimi

9514 1404 393

Answer:

  a = 57.5

  b = 90

  c = 65

Step-by-step explanation:

The measure of an inscribed angle is half that of the arc it intercepts. The angle at 'a' intercepts an arc of 115°, so its measure is (115/2)° = 57.5°

__

The inscribed angle at 'b' is a semicircle, 180°, so the measure of 'b' is (180/2)° = 90°.

__

The arc 'c' is the remainder of a semicircle after 115° have been taken away. Its measure is 180° -115° = 65°.

  (a, b, c) = (57.5, 90, 65)

4 0
3 years ago
I rlly hate math, pweaseeee help me asap!!!
jekas [21]

Answer:

See explanation.

Step-by-step explanation:

Part C)

5+(-10)

When adding a positive to a negative, the result will be the sign of the larger absolute value. In this case, 10 is greater than 5, so the result will be negative.

Adding a negative is also the same thing as subtracting a positive.

5+(-10)\\5-10\\-5

For your second problem, 5 is larger than 3, so the result will be positive.

5+(-3)\\5-3\\2

-----

When adding a positive to another positive, the result will be positive.

5+3\\8

When adding a number to zero, the answer will always be the number.

5+0\\5

Part D)

When multiplying a positive times a negative, the result will always be negative.

5*(-10)\\-50

5*(-3)\\-15

-----

When multiplying a positive times a positive, the result will always be positive.

5*10\\50

When multiplying a positive or a negative times zero, the result will always be zero.

5*0\\0

6 0
3 years ago
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