Step-by-step explanation:
Make sure the bottom line of the angle points to 0. Then slowly go up until the other line hits a number. In this case, it's 40 degrees
5. Y,45 is the axial amount of the y axis items 5
Hello,
2x-5y=1 |3|4
3x-4y=-2|-2|-5
------------------------
-7y=7 ==>y=-1
-7x=14==>x=-2
sol={(-2,-1)}
You must mean the depth of the submarine.
to make sum = zero the depth of the sub must be -1600 ft..