Consider a system of equations 3x-y=5, 2x+3y=-15

A) 3x -y=5

B) 2x +3y=-15

Multiplying A) by 3 we get

A) 9x -3y = 15  then we add it to B)

B) 2x + 3y = -15

x = 0

A) 3*0 -y = 5

y = -5

Step-by-step explanation:

here you hope this .

step-by-step explanation:

hypotenuse = √(15² + 8²)

=  √(225 +64)

=  √(289) = 17

sin(x) = cos(y) = 8/17

they are identical so long as you are doing the sine of one angle and the cosine of the only other angle that isn't the right angle.