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barxatty [35]
2 years ago
6

The measure of each exterior angle of a regular 30-gon is

Mathematics
1 answer:
dezoksy [38]2 years ago
4 0

Answer:

12°

Step-by-step explanation:

So, for your 30-gon, the interior angles total up to (30-2) * 180 = 5040.   Each interior angle is that total divided by the number of interior angles, or 5040/30 = 168º:

 

<u>The measure of each exterior angle is the total divided by the number of angles, or 360/30 = 12º.</u>

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Step-by-step explanation:

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3 years ago
The length of a rectangle is 4 cm less than it’s width. If the area of the rectangle is 165 cm^2. What are the dimensions of the
Monica [59]

Answer:

The dimensions are 11 cm by 15 cm

Step-by-step explanation:

Area of a rectangle = (length)(width).

Let L represent the length and W the width.

Since L = W - 4, we have

Area of rectangle = (W - 4)W = 165 cm^2.

Thus, w^2 - 4W - 165 = 0.  We can solve for W using the quadratic formula:

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        -(-4) ± √ [ (-4)² - 4(1)(-165) ]

W = ---------------------------------------

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W = ------------------------------

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W = -----------------------  =   W = -------------  =  W  = 2 ± 13

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If the width, W, is 15, then the length is 4 less, or L = 11.

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6 0
3 years ago
Another way to write 9 x 200
Katyanochek1 [597]
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6 0
3 years ago
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dusya [7]

Answer:

70

Step-by-step explanation:

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3 years ago
HELP BRAINLEST GUARANTEED
Liono4ka [1.6K]

Answer:

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Step-by-step explanation:

to answer the question we can use this proportion :

x : 100 = 30 : 500

x = (100*30)/500

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for calculate the amount after 10 years we can use this formula

A = P(1+rt)

where P indicates the initial amount, r the rate (in decimal) and t the time of investment

A = 500(1 + 0,06 x 10) = 500(1 + 0,6) = 500(1,6) = 800 $

6 0
2 years ago
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