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Dmitriy789 [7]
3 years ago
7

Which of the lines below is a line of symmetry?

Mathematics
2 answers:
zhannawk [14.2K]3 years ago
8 0

Answer:

d

Step-by-step explanation:

elixir [45]3 years ago
4 0

Answer:

Both.

Step-by-step explanation:

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a rectangular garden is 3 times as long as it is wide .the perimeter is 32m . find the dimensions of the garden​
pochemuha

Answer:

Width= 4

length= 12

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Are 6/10 and 6/30 multiples of 3/10
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10 is not a multiple of 3 so no 6/10 is not multiples for 3/10 and 6 is not a mutiple of 10 so it can't be also the same with 6/30 although 6/30 is multiples for 3 but 6 is not a mutiple for 10.
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Use the virtual models to solve 5/8 x 3
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What is the missing fraction for 1/6 1/8 1/4 ?/? = 1whole
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5 0
3 years ago
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
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