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Alina [70]
3 years ago
9

Can someone pls help me?

Mathematics
1 answer:
Setler [38]3 years ago
4 0
I believe the answer is AD=7.0
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please someone help with this question we are doing angle properties in polygons and I can't figure out b) i will give brainest
labwork [276]

 Answer:

a)  a = 60°  b = 60°   c = 120°  d = 60°

b)  a = 140°   b = 20°  c = 60°    d = 60°

Step-by-step explanation:

a)   Sum of the angles of a hexagon = (6 - 2)180 = 720

Since the hexagon is regular, c = 720/6 = 120

a and c are supplementary, so a = 180 - 120 = 60

d = 120/2 = 60

b)  

sum of the angles of a nonagon = (9 - 2)180 = 1260

a = 1260/9 = 140

140 + 2b = 180

         2b = 40

           b = 20

c = 60  and d = 60  (This is really difficult to explain with the vertices being labeled)

7 0
3 years ago
A putt putt course offers a deal that when you purchase 10 rounds of golf, you get 1 round for free. if you played a total of 35
natima [27]
35/11 = 3.18..... 

This means that out of 35 rounds only 3 of them were free because every 11 rounds 1 is free.

so 35-3=32

You purchased 32 rounds.

Please mark brainliest. This was kind of a confusing question at first.


5 0
3 years ago
Read 2 more answers
25 points to anybody who can solve this pls!
Svetach [21]

Answer:

Q' (2,4)

R' (3,1)

S' (5,3)

Step-by-step explanation:

When reflected across x-axis, the x-values stay the same but y-values change signs. Because you count how many points till the reflection line then same amount you have to go to the other side. But since it is saying x-axis, the reflection line is on x=0 so you just change the sign.

6 0
2 years ago
Read 2 more answers
Amd the third is the last one i wont ask again
Musya8 [376]

Answer:

9.3

Step-by-step explanation:

2/.214

3 0
3 years ago
What is 9m-28=2m explain
loris [4]
9m-28=2m
9m-28-2m=2m-2m
(9m-2m)-28=0
7m-28=0
7m-28+28=0+28
7m=28
(7m)/7 = 28/7
m=4
5 0
3 years ago
Read 2 more answers
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