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olasank [31]
3 years ago
6

Work out the number of sides of

Mathematics
1 answer:
Vesna [10]3 years ago
5 0

Answer:

45 sides

Step-by-step explanation:

Using the property:

Interior angle + exterior angle = 180°

exterior angle = 8°

now, using the formula:

number of sides = 360/exterior angle

number of sides = 360/8

number of sides = 45 ANS.

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Alex wants to arrange chairs in such a way that the number of chairs in a row is equal to the number of columns. He has ordered
PIT_PIT [208]

Answer:

84

59

Step-by-step explanation:

In other to have the same number of chayes in both rows and columns ;

If the Number of chairs per row = x ; then number of chairs per column = x

Then the total number of chairs needed = x * x = x²

Hence, if there are 5100 chairs ;

Number of chairs needed more ;

Take the square root of 5100 ;the round to the next whole number :

B.) For number of chairs to be removed ;

Take the square root of 5100 and round down to the whole number.

Hence,

A.) = √5100 = 71.414 = 72

72² - 5100 = 84

B.) 5100 = 71.414 = 71

5100 - 71² =

8 0
2 years ago
Louann and Carla received equal scores on a test made up of multiple choice questions and an essay. Louann got 14 multiple choic
Gnoma [55]
Louann= 14x+24
Carla= 16x+14
 So basically this is just like solving equations. The way I did this was just put random numbers for x and then solve it.
First attempt: 
14(7)+24=16(7)+14
98+24=112+14
122=126
 Okay the first one didn't work so I use 6 for x. 
Second attempt: 
14(6)+24=16(6)+14
84+24=96+14
108=110

So 6 didn't work and you already should know that the answers should be between 1 and 5. 

So now I going to do 5 for x
Third attempt:
14(5)+24=16(5)+14
70+24=80=14
94=94
 
And so the answer is 5! :D The multiply choice questions were worth 5 points and Louann and Carla had 94 for their scores! I hope this help you out and clear for you! :D
7 0
3 years ago
Read 2 more answers
Simplify the radicals: do 10- 18, no need to show work if you usually do, thank you!!
Ainat [17]

Answer:

10. 7

11. 4

12. 8

13. 7

14. 2

15. 3

16. 11

17. 9

18. 8

Step-by-step explanation:

3 0
3 years ago
Simplify the product. (5 − 6)(2 + 7)
Nat2105 [25]
5 - 6 = -1
2 + 7 = 9
-1 × 9 = -9

-9 would be the simplified answer.

Hope this helps!
8 0
2 years ago
Select the appropriate descriptions of the correlation coefficient (r).
Len [333]

Step-by-step explanation:

I Think Its C

3 0
2 years ago
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