What is the solution of the linear system 3x-2y=1 -x+4y=-27

Mathematics

1 answer:

rjkz [21]3 years ago

5 0

Solution of linear system: (-5, -8)

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yawa3891 [41]

Answer:

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3 years ago

Find the cosine of ∠D.

Yuliya22 [10]

It should be 5/13 because the opposite angle from D is 12, which you would use if you are looking for sine. But, since you are looking for cosine, it is adjacent over hypotenuse. Therefore leaving you with 5/13, since your hypotenuse is always your longest side and the adjacent is the other side from the one opposite of the angle.

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Aleksandr-060686 [28]

Answer:

b=12.20

Step-by-step explanation:

its asking for a triangle. there are two legs (the straight sides) and a hypotenuse*.( the slanted one) the formula for finding a missing side is a2+b2=c2. (squared) then you plug in your numbers. and c2 is always the slanted side while a and b are the legs. Sorry this was late tho.