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belka [17]
3 years ago
13

Please help asap 30 pts

Mathematics
2 answers:
Soloha48 [4]3 years ago
7 0

the answer is c or 3

X=5/3,-1

scoundrel [369]3 years ago
4 0
The answer will be C because if you simply it it will be 6x-2+2=10

Eliminate the opposite which is -2 and 2

Then you are left with 6x=10

Divide both sides by 6 and you will get 5/3
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Pleasee help mee<br><br>12sin(x)-5cos(x)=6,5​
abruzzese [7]

We turn -5,12 into polar coordinates.  It's a Pythagorean Triple so

r = 13   Ф=arctan(-12/5) + 180°   ( in the second quadrant )

so -5 = 13 cos Ф, 12 = 13 sin Ф

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

3 0
3 years ago
(06.07A MC)
Maurinko [17]
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olga2289 [7]
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6 0
3 years ago
Thank you so much ummm ya
iVinArrow [24]

Answer:

it's b

Step-by-step explanation:

it's b because the lines outside of the equation mean the absolute value of the equation

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