The ratio x + y : x - y is equal to 2 : 1.
Write an equation for x in terms of y.

What is the perimeter of a rectangular building that is 80 feet wide and 140 feet deep?

Which value of m will create a system of parallel lines with no solution? y= mx - 6 8x - 4y = 12

In each of the cases that follow, the magnitude of a vector is given along with the counterclockwise angle it makes with the +x axis. use trigonometry to find the x and y components of the vector. also, sketch each vector approximately to scale to see if your calculated answers seem reasonable. (a) 50.0 n at 60.0°, (b) 75 m/ s at 5π/ 6 rad, (c) 254 lb at 325°, (d) 69 km at 1.1π rad.