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borishaifa [10]
3 years ago
14

Sin inverse[sin 6pi/7]. I'm suppose to find the exact value.

Mathematics
1 answer:
lutik1710 [3]3 years ago
3 0
sin^{-1} (sin \frac{6 \pi }{7} )= \frac{6 \pi }{7}
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How to find correlation coefficient with standard deviation.
Nitella [24]

Answer:

<em>Another way to calculate the correlation coefficient </em><em>(r) </em><em>is to </em><u><em>multiply</em></u><em> the slope of the regression line by the </em><u><em>standard deviation</em></u><em> of </em><em>X</em><em> and then </em><u><em>divide</em></u><em> by the standard deviation of </em><em>Y</em><em>.</em>

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8 0
2 years ago
These triangle are similar find the value of x<br> A. 2<br> B.6<br> C.4<br> D.3
Nezavi [6.7K]

Answer:

4

Step-by-step explanation:

in similarity the ratio of the similar sides is the same i.e

10/5 =8/x

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7 0
3 years ago
On a coordinates plane, a line passes through ( - 2 , 3 ) and ( 2 , 6 ). Which of the followings lies on the same line.
Dahasolnce [82]

By direct comparison and definition of <em>line</em> segment  we notice that the point (x, y) = (- 6, 0) lies on the <em>line</em> segment <u>AB</u> as each <u>AP</u> is a multiple of former. (Correct choice: C)

<h3>What point lies on a line segment?</h3>

According to linear algebra, a point lies in a <em>line</em> segment if its vector is a multiple of the vector that generates the <em>line</em> segment itself, that is:

<u>AB</u> = k · <u>AP</u>        (1)

The vector that generates the <em>line</em> segment is:

<u>AB</u> = (2, 6) - (- 2, 3)

<u>AB</u> = (4, 3)

And the vectors related to each point are:

Case A

<u>AP</u> = (- 2, 12) - (- 2, 3)

<u>AP</u> = (0, 9)

Case B

<u>AP</u> = (6, 12) - (- 2, 3)

<u>AP</u> = (8, 9)

Case C

<u>AP</u> = (- 6, 0) - (- 2, 3)

<u>AP</u> = (- 4, - 3)

Case D

<u>AP</u> = (- 6, 6) - (- 2, 3)

<u>AP</u> = (- 4, 3)

By direct comparison and definition of <em>line</em> segment  we notice that the point (x, y) = (- 6, 0) lies on the <em>line</em> segment <u>AB</u> as each <u>AP</u> is a multiple of former. (Correct choice: C)

To learn more more on line segments: brainly.com/question/25727583

#SPJ1

4 0
2 years ago
How many answers do you have to answer to message people on brainly
tiny-mole [99]
You don’t have to answer people to message
3 0
3 years ago
Read 2 more answers
Kiran has a toy car collection. He keeps some in a display case and the rest on the wall. 195 of his toy cars are on the wall, a
morpeh [17]

35% are in display cases which means 65% are on the wall.


this means 195 cars is 65% of the collection.


to get total number of cars in the collection divide 195 by 65%

195/0.65 = 300


answer: 300 total cars

4 0
2 years ago
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