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Gre4nikov [31]
3 years ago
5

1 inch= 2.54 cm

Mathematics
1 answer:
Digiron [165]3 years ago
4 0

Answer:

152.4 cm is the answer

Step-by-step explanation:

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Pleasee help mee<br><br>12sin(x)-5cos(x)=6,5​
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We turn -5,12 into polar coordinates.  It's a Pythagorean Triple so

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12 sin x - 5 cos x = 6.5

13 sinФ sin x + 13 cos Ф cos x = 6.5  

13 cos(x - Ф) = 6.5

cos(x - Ф) = 1/2

cos(x - Ф) = cos 60°

x - Ф = ± 60° + 360° k     integer k

x = Ф ± 60° + 360° k  

x = 180° + arctan(-12/5) ± 60° + 360° k  

That's the exact answer;

x ≈  180° - 67.38° ± 60° + 360° k  

x ≈  122.62° ± 60° + 360° k  

x ≈  { 62.62°, 182.62°} + 360° k,  integer k

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3 years ago
The length of a spring varies directly with the mass of an object that is attached to it. When a 30-gram object is attached, the
Rom4ik [11]
M/s=30/9 =10/3

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Step-by-step explanation:

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