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lianna [129]
2 years ago
15

What is the mean absolute deviation of her math scores? 5.4 6.4 7.8. o 8.8

Mathematics
1 answer:
lara [203]2 years ago
3 0

Answer:

The mean absolute deviation (MAD) of her Math scores would be 1.2.

Step-by-step explanation:

Mean: 5.4 + 6.4 + 7.8 + 8.8 = 28.4/4 = 7.1

7.1 - 5.4 = 1.7

7.1 - 6.4 = 0.7

7.1 - 7.8 = 0.7

7.1 - 8.8 = 1.7

Mean Absolute Deviation: 1.7 + 0.7 + 0.7 + 1.7 = 4.8/4 = 1.2

hope this helps :)

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Answer:

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Step-by-step explanation:

Let, the length of the rectangle be 'L'

and, width of the rectangle be 'W'

length=2*Width+3

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Area of a rectangle = Length*Width

90=(2W+3)*W\\\\2W^2+3W=90\\\\2W^2+3W-90=0\\\\

Using Factorization Method to solve quadratic equation:

2W^2-12W+15W-90=0

Taking common from the equation:

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OR

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Length=27feet\\Width=12 feet

3 0
3 years ago
Of the students in Ms.Danver's class, 6 walk to school.This represents 30% of her students.How many Students are in Ms.Damver's
Kisachek [45]
There is 20 students. To find the answer you need to use porportionals and cross multiply.
6 0
3 years ago
Read 2 more answers
Please help first person to answer correctly with no links get 50 points and marked as brainliest no links please
icang [17]

Answer:

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Step-by-step explanation:

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