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MariettaO [177]
3 years ago
8

Kevin claims that the smallest angle of rotation through the center of a regular 15-gon that carries it onto itself is 156° sinc

e 180(15−2)15=156. Decide if Kevin is correct. If Kevin is correct, enter 156 below. If Kevin is incorrect, enter the correct value of the smallest angle of rotation through the center of a regular 15-gon that carries it onto itself.
Mathematics
1 answer:
STALIN [3.7K]3 years ago
6 0

Answer:

Step-by-step explanation:

The formula for calculating the interior angle of a polygon is expressed as;

sum of internal angle = (n-2)180 where;

n is the number of sides of the polygon in consideration.

Given a 15 sided polygon, n = 15

sum of internal angle = (15-2)180

sum of internal angle = (13)180

sum of internal angle = 2340

Hence kevin is wrong, the correct answer is 2340

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to fill a coffee mug at a local shop costs $2.50. the shop sells coffee beans foe $12 per pound. each pound makes enough coffee
myrzilka [38]

Answer:

There are a few possible answers so read explanation, but the one I will put up here is:

20.83

Step-by-step explanation:

First you have to find how much 100 cups of coffee costs in store.

To do this you will multiply 2.50 by 100 and get 250. So now we know 100 cups of coffee in store costs $250 whereas 100 cups at home is $12.

To find how many times greater the price in store is compared to the at home brew, you have to divide 250 by 12 and get 20.8333333....

We don't stop there though, because it asks us to approximate. I am not sure what it would like us to round to, but here are some possible approximations:

  1. 20.83
  2. 20.8
  3. 21

Any of those re reasonable approximations, you choose whichever you think the question wants, or whatever your teacher asks for.

Hope this helps

3 0
3 years ago
Which shows the use of the associative property?
aivan3 [116]

Answer:

B shows the associative property

6 0
2 years ago
Drag and drop an answer to each box to correctly explain the derivation of the formula for the volume of a pyramid.
Irina18 [472]

A prism is rectangular shaped,. a pyramid is triangular shaped.

The ratio would be  1 to 3

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8 0
3 years ago
A rectangle's length and width are in a ratio of 11:3. The perimeter is 56 feet. What are the length and width?
frozen [14]

Answer:

Length=44feet

Width=12feet

Step-by-step explanation:

length:width=11:3

Perimeter=56feet

Sum of ratio=11+3

Sum of ratio=14

Length=11/14 x 56

Length=(11 x 56)/14

Length=616/14

Length=44feet

Width=3/14 x 56

Width=(3 x 56)/14

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Width=12feet

7 0
3 years ago
Time Remaining C.14:06
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Answer:

Step-by-step explanation:

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