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forsale [732]
2 years ago
7

HURRY PLEASE!! How many sides are there in a regular polygon which has 120 degrees in each of its angeles?

Mathematics
2 answers:
N76 [4]2 years ago
7 0
Number of angles = number of sides

180 - 120 = 60 (calculating the exterior angle)

360 / 60 = 6

There are 6 sides.

Hope this helps! :)
melomori [17]2 years ago
3 0
Formula for internal angles of a n gon is (n-2)180/n

so it has 120 on each of the angles

120=(n-2)180/n
times both sides by n
120n=180n-360
minus 180n both sides
-60n=-360
divide both sides by -60
n=6

6 sides
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Thaddeus models the number of hours of daylight in his town as
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Option (A) :  least: 10 hours; greatest: 14 hours

The function f(x) = sin x has all real numbers in its domain, but its range is

−1 ≤ sin x ≤ 1.

How to solve such range questions?

Such questions in which every term is in addition and its range is asked is simplest ones to solve if we know the range of each of term. This can be seen from this question

Given: d(t) = 2sin(xt) + 12

=  −1 ≤ sin (xt) ≤ 1.

=  −2≤ 2 sin (xt) ≤ 2.

=  10 ≤ 2sin (xt) + 12 ≤ 14

=   10 ≤d(t) ≤ 14

Thus  least: 10 hours; greatest: 14 hours

Learn more about range of trigonometric ratios here :

brainly.com/question/14304883

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6 0
2 years ago
You are playing the game "Hidden Treasure" and your hint is that the treasure is 9 spaces away from the point (0, 0). Which of t
olganol [36]

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9,0 0,9 -9,0 0,-9

Step-by-step explanation:

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7 0
2 years ago
-4.5x-2y=-12.5 3.25x-y=-0.75<br> solve by elimination
creativ13 [48]
-4.5x-2y=-12.5 and 3.25x-y=-0.75
we first multiply the second equation by -2
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add the equation to eliminate the y
so yo get (-4.5x-6.5x)=(-12.5-1.5)
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now we plug in x into any equation to solve for y
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5 0
3 years ago
Find x. Round to the nearest tenth if needed.
alexdok [17]

Answer:

x = 16

Step-by-step explanation:

Use that the addition of all internal angles of a triangle must add up to 180, and the fact that the two given triangles are similar:

51 + 65 + 4 x = 180

combine and solve for "x"

116 + 4 x = 180

4 x = 180 - 116

4 x = 64

x = 64 / 4

x = 16

5 0
3 years ago
Read 2 more answers
A researcher wishes to conduct a study of the color preferences of new car buyers. Suppose that 50%50% of this population prefer
n200080 [17]

Answer:

0.1527

Step-by-step explanation:

Given that a researcher wishes to conduct a study of the color preferences of new car buyers.

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X has exactly two outcomes red or non red.

Also each buyer is independent of the other

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= P(X=9)

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6 0
2 years ago
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