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Free_Kalibri [48]
3 years ago
9

PLEASE HELP!!! I WILL GIVE 100 POINTS AND BRAINLIEST ANSWER IF YOU JUST PLEASE HELP ME!!! ;(

Mathematics
1 answer:
Citrus2011 [14]3 years ago
8 0
If you add the standard deviation to the average, it is 14.84. Because Marcus's score was lower than that, he will not receive a certificate. 
I think this should be right for the reason and the calculation. 


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Nothing that 5 miles is equal to 8 kilometers. Convert 20 miles to kilometers.
adell [148]

The correct answer is 32 kilometers.

3 0
3 years ago
Nina asked 30 of her friends what they thought about a new movie.
Sunny_sXe [5.5K]
No, this is not a random group of students. Because Nina asked her friends if they liked the movie. For her to ask a random group of people, she would have to go and ask people that she did not know.
4 0
3 years ago
Read 2 more answers
Please help:)
Finger [1]
The sum of all angles in an octagon is given by

180*(n-2) >>>>>>>>>with n = 8

180*(8-2) = 1080 degrees

A + B = 1080 .......where

A
  is the <span>angle of an octagon which is twice that of the other seven angles
</span><span>
B equals the sum of the other seven angles

If we assume each angle of B is equal to each other, then

B = x+x+x+x+x+x+x = 7x
</span>
And A = 2x

The equation that results is 

A + B = 2x +7x = 9x =1080

x = 120 degrees
2x = A = 240 degrees





5 0
3 years ago
2. Cross out the equations that are NOT linear functions.
wel

Welcome to the concept of the maths.

Here, we can see, that Linear equation always have highest power or degree of its variable as '1' ,

thus here, y = 3/x has degree as -1 and y = x^2 +5 has degree 2 ,

hence,

The equations that are NOT linear are

2.) y = 3/x and 5.) y = x^2 + 5

8 0
3 years ago
Read 2 more answers
The product of 5 and the difference between a number and 7 is 75 what is the numberrrrrrrrrrrrrrrr
stich3 [128]

Answer:

x=8

Step-by-step explanation:

5(x-7)=75

5x-35=75

-35 -35

5x = 40

5 5

x = 8

5 0
3 years ago
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