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3 years ago

What is the value of cosec720

Mathematics

1 answer:

shusha [124]3 years ago

5 0

Answer:

csc 720 )

Step-by-step explanation:

Rewrite

csc

(

720

)

in terms of sines and cosines.

sin

(

720

)

Remove full rotations of

360

° until the angle is between

° and

360

°.

sin

(

)

The exact value of

sin

(

)

The expression contains a division by

The expression is undefined.

Undefined

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A distance AB is observed repeatedly using the same equipment and procedures, and the results, in meters, are listed below: 67.4

skad [1K]

Answer:

a) $\bar X =\frac{67.401+67.400+67.402+67.396+67.406+67.401+67.396+67.401+67.405+67.404}{10}=67.401$

b) The sample deviation is calculated from the following formula:

$s=\sqrt{\frac{\sum_{i=1}^n (X_i -\bar X)^2}{n-1}}$

And for this case after replace the values and with the sample mean already calculated we got:

$s=0.0036$

If we assume that the data represent a population then the standard deviation would be given by:

$\sigma=\sqrt{\frac{\sum_{i=1}^n (X_i -\bar X)^2}{n}}$

And then the deviation would be:

$\sigma =0.00319$

Step-by-step explanation:

For this case we have the following dataset:

67.401, 67.400, 67.402, 67.396, 67.406, 67.401, 67.396, 67.401, 67.405, and 67.404

Part a: Determine the most probable value.

For this case the most probably value would be the sample mean given by this formula:

$\bar X =\frac{\sum_{i=1}^n X_i}{n}$

And if we replace we got:

$\bar X =\frac{67.401+67.400+67.402+67.396+67.406+67.401+67.396+67.401+67.405+67.404}{10}=67.401$

Part b: Determine the standard deviation

The sample deviation is calculated from the following formula:

$s=\sqrt{\frac{\sum_{i=1}^n (X_i -\bar X)^2}{n-1}}$

And for this case after replace the values and with the sample mean already calculated we got:

$s=0.0036$

If we assume that the data represent a population then the standard deviation would be given by:

$\sigma=\sqrt{\frac{\sum_{i=1}^n (X_i -\bar X)^2}{n}}$

And then the deviation would be:

$\sigma =0.00319$

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Answer:

y=x/3 is correct answer.

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3 years ago

Express the rate as a unit.<br> 2.75 yards of fabric for $22

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Answer:

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Step-by-step explanation:

You probably want dollars per yard. To get that, divide dollars by yards:

$22/(2.75 yd) = $8 /yd

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Answer:

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Step-by-step explanation:

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100,000+20000+200+5 in standard form

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3 years ago

What is the value of cosec720​

What is the value of cosec720