Question

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Answer 1

Answer is A

sintheta = front side / hypotenuse

if theata is B then Answer is AB/AC

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Hope you got your answer.

Answer 2

Step-by-step explanation:

X+2y =5 ..equation(1)

7x+3y=13.equation(2)

3 is multiply to equation (1) and 2 is multiply to equation (2)

X+ 2y=5 x3

7X +3y=13*2

=3x +6y=15

=14x +6y=26

-11x = -11x

X=1

put the value of x in equation (1)

X+2y=5

1+2y=5

2y=5-1

2y=4

y= 4/2

y=2

so the value of X =1 and Y=2