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Alex777 [14]
3 years ago
14

WILL MARK BRAINLIEST!!!!!!!!

Mathematics
1 answer:
SVETLANKA909090 [29]3 years ago
7 0

Data:

15 16 14 15 19 17

n=6 points

sum is 96

mean is 96/6 = 16

Now we look at the absolute deviations, each of which is the absolute value of a score minus the mean, basically the distance of the score to the mean .

Scores   15 16 14 15 19 17

AbsDev    1  0  2  1    3  1

The sum of the absolute deviations is 8 and there are six of them so the

Mean Absolute Deviation = 8/6 = 4/3

Answer: 2.    8/6

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For the real-valued functions f(x)=2x+1 and g(x)=sqrt(x-1), find the composition f o g and specify its domain using interval not
Anettt [7]

Answer:

fog = 2√(x-1) + 1

Domain = [1, \infty)

Step-by-step explanation:

Given the functions  f(x)=2x+1 and g(x)=sqrt(x-1), we are to find the composite function fog

fog = f(g(x))

f(g(x)) = f(√(x-1))

f(√(x+1)) means that we are to replace variable x in f(x) with the function √(x-1)

f(√(x-1)) = 2(√(x-1))+1

f(√(x+1)) = 2√(x-1) + 1

fog = 2√(x-1) + 1

<em>For the function to exist on any real valued function, then the function inside square root i.e x-1 must be greater than or equal to zero (x-1≥0)</em>

If x-1≥0

x≥0+1

x≥1

This means the range of variable x must be values of x greater than or equal to 1.

Domain = [1, \infty)

8 0
3 years ago
In the sequence – 40, –33, –26, –19, … determine the 77th term and the sum of the first 90 terms.
Gala2k [10]
The 77th term is 532 because the nth term is 7n-7

7x77=539

539-7=532
5 0
3 years ago
Complete the equation below to show a way to write 5/38 as a fraction
vaieri [72.5K]
5/38 is 0.13 because you have to divide them
6 0
3 years ago
Madison measured her paper. It was 2/3 feet wide and 1/4 foot long. What is the area of her paper
IRISSAK [1]

Answer:

1/6 squared feet or 0.17 squared feet

Step-by-step explanation:

Since it's a paper, we assume it is a rectangle.

Use the formula for area of a rectangle. A= lw

l is the length and w is the width.

The width is 2/3 feet and the length is 1/4 feet.

Substitute w = 2/3 and l=1/4 into the equation for area of a rectangle.

A = lw

A = (1/4)(2/3)   Multiply both numerators, then both denominators

A = 2/12    Simplify. Top and bottom are divisible by 2

A = 1/6

A ≈ 0.17 Rounded to two decimal places

When you multiply two numbers with units, the answer's unit becomes the squared unit.

Therefore the area of her paper is 1/6 squared feet, or 0.17 squared feet.

8 0
3 years ago
Read 2 more answers
Help!!!
oksano4ka [1.4K]

Answer:

B

Step-by-step explanation:

3.4 x -3.4= -11.56  

3.4 X 3.4 = 11.56 YES

-3.4 X -3.4 = 11.56

-3.4 X 3.4 = -11.56

5 0
3 years ago
Read 2 more answers
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