Hello,
{x=y-3
{x+3y=13;
{x=y-3
{y-3+3y=13;
{x=y-3
{4y=13+3;
{x=y-3
{4y=16;
{x=y-3
{y=16:4=4;
{x=4-3=1
{y=4;
{x=1
{y=4
the solution to the system of equations is (1,4)
Bye :-)
I think the sabers are X=2 and X=-2
I’m pretty sure the answer is 21.6
So check the picture below
recall your SOH CAH TOA

which identity uses only
angle
opposite
adjacent?
well, is Ms Tangent.. thus

solve for "x", make sure your calculator is in Degree mode, since the angle is in degrees