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olya-2409 [2.1K]

3 years ago

15

Definition of Line segment

1 answer:

klemol [59]3 years ago

3 0

The definition of a line segment is a line that will never end

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3 years ago

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Rudiy27

Answer: The standard error of the mean = 0.5

Step-by-step explanation:

Given : Sample size : n = 144

Standard deviation : $\sigma=6\text{ hours}$

The formula to find the standard error of the mean is given by :-

$S.E.=\dfrac{\sigma}{\sqrt{n}}$

i.e. $S.E.=\dfrac{6}{\sqrt{144}}=0.5$

Hence, the standard error of the mean =0.5

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3 years ago

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kherson [118]

Step-by-step explanation: Isolate the variable by dividing each side by factors that don't contain the variable.

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2 years ago

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Novay_Z [31]

Answer:

Last Choice / D

Step-by-step explanation:

you want to isolate v!

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please click heart to give thanks :)

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2 years ago

Read 2 more answers

Simplify the expression (2x − 9)(x + 6)

kenny6666 [7]

<u>Answer: </u>

Simplified form of given expression (2x – 9 )( x + 6 ) is $2 \mathrm{x}^{2}+3 \mathrm{x}-54$

<u> Solution: </u>

We need to simplify following expression.

(2x – 9) ( x + 6)

For sake of simplicity lets first assume 2x – 9 = A

So expression becomes A(x+6)

= Ax + A6

Now replace A by 2x – 9

= (2x – 9 ) x + (2x – 9 ) 6

$=2 \mathrm{x}^{2}-9 \mathrm{x}+12 \mathrm{x}-54$

On simplification, we get

$=2 \mathrm{x}^{2}+3 \mathrm{x}-54$

Hence simplified form of given expression (2x – 9 )( x + 6 ) is $= 2 \mathrm{x}^{2}+3 \mathrm{x}-54$

7 0

3 years ago