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RideAnS [48]
3 years ago
13

What is the measure of an exterior angle of a regular nonagon

Mathematics
1 answer:
Tanzania [10]3 years ago
7 0

A regular nonagon is 9-sided polygon with all congruent sides and congruent interior angles.

The sum of exterior angles of n-sided polygon is 360°. If all interior angles of regular nonagon are congruent, then all exterior angles are congruent too.

Then each exterior angle has the measure of

\dfrac{360^{\circ}}{9}=40^{\circ}.

Answer: 40^{\circ}

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Which graph represents the solution to the compound inequality?<br><br> –6 &lt; 3x – 12 ≤ 9
andrey2020 [161]

Answer:

second graph

Step-by-step explanation:

Solving the inequality

- 6 < 3x - 12 ≤ 9 ( add 12 to all 3 intervals )

6 < 3x ≤ 21 ( divide the intervals by 3 )

2 < x ≤ 7

The graph has an open circle at 2 and a closed circle at 7

This is represented on the second graph

4 0
3 years ago
PLEASE HELP IM STUCK WITH THIS ONE AND I DONT KNOW :(
labwork [276]
The line crossing the two parallel lines forms an allied angle
So using the theory “allied angles add up to 180 degrees” we can find x

76 + x =180
x= 180-76
x=104 (Option B)
6 0
3 years ago
1. A submarine is 40 meters below sea level. It goes up 12 meters, then goes down 30 meters. What is the submarine's new positio
Lilit [14]

Answer:

Question Number 1: C. -58 meters

Question Number 2: 1.45 lbs

Step-by-step explanation:

<em><u>Question Number 1: </u></em>

40 - 12 = 28 meters below sea level

28 + 30 = 58 meters below sea level . So respectively its negative, so -58 would be your answer .

<em><u>Question Number 2: </u></em>

To figure out how many pounds of carrots are in each cake, divided 7.25 by 5. That equals 1.45. So one cake needs 1.45 pounds of carrots.

8 0
3 years ago
PLEASE HELP ASAPPPPP
sveticcg [70]

Answer:

506.7 cm²

Step-by-step explanation:

The amount of cardboard needed would be the surface area of the cone,

S= pi(r)(l+r) where r is the radius and l is the slant height.

You can find l using the Pythagorean theorem. l²=r²+h² which is l²=6²+20² and you get l = √436.

Plug r and l into the equation: S = 6pi(√436 + 6) = 506.7 cm²

Let me know if you have any questions about my steps!

4 0
2 years ago
The ratio of legs to dogs in the cat shelter was 4 to 1. If there were 8 cats , then how many cats were there?
andrezito [222]

Answer:

if there were 8 cats then theres 8 cats, or 32 dogs

Step-by-step explanation:

3 0
1 year ago
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