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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:<br>3 = -2v - V<br>V=​
Y_Kistochka [10]

Answer:

V = −1

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

3=−2v−v

3=−2v+−v

3=(−2v+−v)(Combine Like Terms)

3=−3v

3=−3v

Step 2: Flip the equation.

−3v=3

Step 3: Divide both sides by -3.

<u>−3v</u>  = <u>3</u>

-3     -3

v=−1

4 0
3 years ago
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Start: 8:49pm. finish: 9:17 what is the answer calculate the duration​
tatuchka [14]

Answer:

1 minute and 8 seconds or 1:08

Step-by-step explanation:

by subtracting both at starting with 9:17-8:49 you will get a uneven decimal than you gonna have to give as much 60 seconds you can get out of it the 60 seconds equals a minute

8 0
3 years ago
The length and
Iteru [2.4K]

Answer:

42 yards

Step-by-step explanation

There are 4 sides to a rectangle. 2 lengths, and 2 widths. That means that you multiply both values by 2 and then add them together, so 40 + 2. A more basic way to think of it is 20+20+1+1. Therefore, the perimeter is 41 yards.

7 0
3 years ago
Please help!!<br> i will mark as brainliest
Viktor [21]

Step-by-step explanation:

okay

I think you should use the method of tan 30

and then find x by using pythagorean theorem

4 0
3 years ago
1 5.2.3 Quiz: Completing the Square
Softa [21]

Answer:

x=5/2 or x=2.5

Step-by-step explanation:

x time 2 + 4x=15

6x=15

2x=15

2x=5

7 0
2 years ago
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