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nadezda [96]
3 years ago
12

Please help me at this math proplem thank you pleas help me

Mathematics
1 answer:
Shkiper50 [21]3 years ago
4 0

which math problem?? There is many on the picture

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Given: 3x < -6.
In-s [12.5K]
3x < -6
x < -6/3
x < -2
Therefore, the solution set is {x | x < -2}.
3 0
3 years ago
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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
Solve. 6 4/5=5/6x−3 1/2 Enter your answer as a mixed number in simplest form in the box X= ? HELP ASAP!!!!! I WILL GIVE BRAINLIE
maksim [4K]

Answer:

x=12.36 or 12 9/25 or 309/25

Step-by-step explanation:

3 0
2 years ago
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Dissimilar to similar fractions
V125BC [204]
1. 9/15 and 10/15

2. 7/9 and 6/9

3. 16/24 and 3/24

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3 years ago
Which of the following coordinates would be on the line y = 2x (0, 2) (2, 0) (1, 2) (2, 2) Please explain it!
jolli1 [7]

Answ(0,2)

By putting x 0 and y 2

Step-by-step explanation:

4 0
3 years ago
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