My math teacher is giving me a question about the mean absolute deviation. I don't really get it. Some help please.

Answers

Answer 1

Answer: well, you didn't show the question but i can tell you this: first find the mean of the data set.
1) 1+2+3+4=10 10/4(amount of #)=2.5
then, subtract the mean from each number in the data set.
2) 1-2.5= -1.5; 2-2.5= -0.5; 3-2.5= 0.5; 4-2.5= 1.5
convert all these numbers to positive, then add them together.
3)1.5 + 0.5 + 0.5 +1.5 = 4
divide the total by the amount of # in the data set
4/4=1
the MAD in this case is 1.

Hope i helped!! :)

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What is 350 over 100 in simplest form

Answers

well, its like this:
350/100 would be: 350 divide by 100, then you get: 3.5
So 100 times 3 is 100. so it is:
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What is not a pair of equivalent fractions for 5/8 and 1/2

Answers

Two fractions equivalent to each: Just divide or multiply both top AND bottom by the same number.
5/6: 10/12 OR 15/18
15/30: 5/10 OR 1/2
45/60: 8/12 OR 4/6

Rewrite each pair or fractions with common denominator: Find the difference between the two bottom numbers, and multiply top and bottom number.

5/8 and 3/4: 4X2=8, 3X2=6. So, 5/8 and 6/8.
2/5 and 1/2: 2/5 and 2.5/5
9/9 and 5/7: 9/9 and ~5.7/9

Rewrite each in simple form: Find greatest common factor and divide.

9/54: 1/6
20/40: 1/2
100/110: 10/11

Are these fractions equivalent?
No. 5/1 and 5/5 are, because they are both 5 wholes. 1/5 is not because it is a fifth of a whole.

In what situation can you use multiplication to find equivalent fractions?
I'm sorry but I do not understand this question.
Source(s):I hope I helped, seeing as I have graduated with a math degree.

Factor the trinomial x2-4x-5

Answers

Answer:

(x-5) (x+1)

Step-by-step explanation:

x^2-4x-5

We need to find what 2 numbers multiply to -5 and add to -4

-5*1 = -5

-5+1 = -4

(x-5) (x+1)

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Answers

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What is 1 lb = to ? oz

Answers

1 pound is always equal to 16 oz and 2000 pound equal to 1 ton, hope this help

i pound is 16 ounces

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