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oee [108]
3 years ago
13

Calculate interior angle of a regular 15 sided polygon​

Mathematics
1 answer:
AleksAgata [21]3 years ago
8 0

Answer:

156°

Step-by-step explanation:

The sum of the interior angles of a polygon is

sum = 180° (n - 2) ← n is the number of sides

Here n = 15 , then

sum = 180° × 13 = 2340°

interior angle = \frac{sum}{n} = \frac{2340}{15} = 156°

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4-5
Mrrafil [7]

Comparing with the original expression, the value that will go into the green box is 5

<h3>Exponents and indices</h3>

Given the indices expression below;

\frac{4^{-5}}{4^4}

Since 4^-5 is equivalent to 1/4^5, hence the given expression will be equivalent to;

\frac{1}{4^5\times4^4}

Comparing with the original expression, the value that will go into the green box is 5

Learn more on exponent here: brainly.com/question/11975096

#SPJ1

7 0
2 years ago
find the length of a rectangular lot with a perimeter of 140 m if the length is 6 m more than the width.
satela [25.4K]
The width would be x.
the length would be x+6
there are two of each (since it’s a rectangle)
so x+x+x+6+x+6=140
simplify
x= 32
l= 38
w= 32
7 0
3 years ago
-3x-3y=9 need help what is this​
Bad White [126]

Answer:

X equals negative 3 and y equals zero.

3 0
3 years ago
Write an equation of the line with the given slope and y-intercept
Vinil7 [7]

Answer:

y=mx+c

y=2x+9

Step-by-step explanation:

Slope(m)=2, y-intercept(c) =9

Substitute in the equation y=mx+c

5 0
3 years ago
An urn contains 2 red marbles and 3 blue marbles. 1. One person takes two marbles at random from the urn and does not replace th
Ghella [55]

Answer:

A) The best way to picture this problem is with a probability tree, with two steps.

The first branch, the person can choose red or blue, being 2 out of five (2/5) the chances of picking a red marble and 3 out of 5 of picking a blue one.

The probabilities of the second pick depends on the first pick, because it only can choose of what it is left in the urn.

If the first pick was red marble, the probabilities of picking a red marble are 1 out of 4 (what is left of red marble out of the total marble left int the urn) and 3 out of 4 for the blue marble.

If the first pick was the blue marble, there is 2/4 of chances of picking red and 2/4 of picking blue.

B) So a person can have a red marble and a blue marble in two ways:

1) Picking the red first and the blue last

2) Picking the blue first and the red last

C) P(R&B) = 3/5 = 60%

Step-by-step explanation:

C) P(R&B) = P(RB) + P(BR) = (2/5)*(3/4) + (3/5)*(2/4) = 3/10 + 3/10 = 3/5

3 0
3 years ago
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