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3 years ago

What is the answer of this question

Mathematics

1 answer:

zvonat [6]3 years ago

6 0

The right answer is x^2-1.

EXPLANATION:

To be a polynomial, the power of each term must be a whole number.

Hope it will be helpful to you...

Good luck on your assignment

~pragya

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Using data from a study, we find a significant difference in the proportion of fruit flies surviving after 13 days between those

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Answer:

uns 20 a 25%

Step-by-step explanation:

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3 years ago

12.4. Measure of Dispersion 2076 Q.No. 15 Find the standard deviation of: 4, 6, 8, 10, 12.

Alenkinab [10]

Answer:

Standard deviation of given data = 3.16227

Step-by-step explanation:

Step(i):-

Given sample size 'n' = 5

Given data 4, 6,8,10,12

$Mean = \frac{4+6+8+10+12}{5} = 8$

Mean of the sample x⁻ = 8

Standard deviation of the sample

$S.D = \sqrt{\frac{Sum(x-x^{-} )^{2} }{n-1}}$

Step(ii):-

Given data

x : 4 6 8 10 12

x-x⁻ : 4 - 8 6-8 8-8 10-8 12-8

(x-x⁻) : -4 -2 0 2 4

(x-x⁻)² : 16 4 0 4 16

$S.D = \sqrt{\frac{Sum(x-x^{-} )^{2} }{n-1}}$

$S.D = \sqrt{\frac{16+4+0+4+16}{4}}$

S.D = √10 = 3.16227

Final answer:-

The standard deviation = 3.16227

8 0

3 years ago

Which graph represents the solution to the given system? y = -2x + 5 and y = 3x - 2

sasho [114]

To find the X value of the solution, you would set the two equations equal to each other bu substitution:
if y = -2x + 5 and y = 3x - 2,
-2x + 5 must be equal to 3x - 2
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then, plug that into one of the original equations as X and you would get the Y value, 11/5

This point, (7/5,11/5) is where the two lines cross

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Sindrei [870]

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Answer:

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