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vovangra [49]
2 years ago
6

Find the variance for the following data set: 88, 40, 10, 52, 33, 55, and 86.

Mathematics
1 answer:
musickatia [10]2 years ago
7 0

Answer:

Variance s2 = 788.33333

Standard Deviation s = 28.077274

Count n = 7

Mean x¯¯¯ = 52

Sum of Squares SS = 4730

Step-by-step explanation:

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Can u plz help me answer question 30
slamgirl [31]

We are given:

3x^3-2x^2

There seems to be nothing I can do to simplify this equation. However, I can factor out an x^2 since they both have at least an x^2. Here is what we get:

x^2(3x-2)

This is in the simplest form I can get into. I cannot do anything more to simplify this expression. This is your final answer.

3 0
3 years ago
NEED HELP ASAP! Plz answer all the questions! Including the one on the picture! Will give brainlest!
xeze [42]

-2/3-(-1 1/3) =

-2/3 + 1 1/3 =

4/3 - 2/3 =

<em>2/3</em>

12 - (-5) =

12 + 5 =

<em>17</em>

-1 - (-6) =

-1 + 6 =

6 - 1 =

<em>5</em>

-3 3/8 - 7/8 =

27/8 - 7/8 =

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2 4/8 =

<em>2</em><em> </em><em>1/2</em>

4 0
3 years ago
Read 2 more answers
The value of y varies directly with x. If x = 2, then y = 10. What is the value of x when y = 100? *​
Fynjy0 [20]

Answer:

20

Step-by-step explanation:

y=kx

X=2 & y= 10

10=2k

k=5

when y=100

100=5x

X=20

8 0
3 years ago
Factor 8x^3y + 38x^2y - 10xy
Sophie [7]

Answer:

2xy(x+5)(4x−1)

Step-by-step explanation:

1 Find the Greatest Common Factor (GCF).

GCF = 2xy

2 Factor out the GCF. (Write the GCF first. Then, in parentheses, divide each term by the GCF.)

2xy (8x^3y + 38x^2y/2xy + −10xy/2xy)

3 Simplify each term in parentheses.

2xy(4x^2 +19x−5)

4 Split the second term in 4x^2+19x-5 into two terms.

2xy(4x^2 +20x−x−5)

5 Factor out common terms in the first two terms, then in the last two terms.

2xy(4x(x+5)−(x+5))

6 Factor out the common term x+5.

2xy(x+5)(4x−1)

7 0
2 years ago
Write a number in which the value of the 3 is 10 times the value of the digit 3 in 156.32
Marat540 [252]

Answer:

1563.2

Step-by-step explanation:

If you just multiply 0.3 by 10 you will get 3

Now all you need to do is write 3 or have a number which has unit place value of 3

5 0
3 years ago
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