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nika2105 [10]
3 years ago
11

Y varies inversely as x. y = 12 when x = 7. Find y when x = 6.

Mathematics
2 answers:
laiz [17]3 years ago
8 0

Answer: Y=2 !! ;) XD ;P

Scorpion4ik [409]3 years ago
6 0

hope it helps you!!!!!!!!!!!!!

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It would be 7.5ft by 30ft
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What is the volume of the following rectangular prism?
Ksenya-84 [330]

Answer:

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Step-by-step explanation:

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You have to multiply 3 times 2= 6 + 4 = 10 so the answer is 10 I hope this help...
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A wave emitted from a source has a frequency of 10 Hz and wavelength 2.5 m. How much time will it take to reach a person located
Vesnalui [34]

Time taken to reach a person located 5m from the source is 0.2s

<u>Explanation:</u>

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velocity = f X λ

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3sina-4sin4a/sin5a<br> if a=-45 degree
Ierofanga [76]

Given:

The given expression is:

\dfrac{3\sin a-4\sin 4a}{\sin 5a}

To find:

The value of the given expression at a=-45.

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\dfrac{3\sin a-4\sin 4a}{\sin 5a}

Substituting a=-45, we get

\dfrac{3\sin (-45)-4\sin [4(-45)]}{\sin [5(-45)]}

=\dfrac{-3\sin (45)+4\sin (180)}{-\sin (225)}

=\dfrac{-3\sin (45)+4\sin (180)}{-\sin (180+45)}

=\dfrac{-3\sin (45)+4\sin (180)}{\sin (45)}

On substituting \sin (180), we get,

=\dfrac{-3\sin (45)+4(0)}{\sin (45)}

=\dfrac{-3\sin (45)+0}{\sin (45)}

=\dfrac{-3\sin (45)}{\sin (45)}

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Therefore, the value of the given expression at  a=-45 is -3.

8 0
3 years ago
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