The width of a rectangle is increasing at a rate of 6 inches per second and its length is increasing at the rate of 9 inches per second. At what rate is the area of the rectangle increasing when its width is 3 inches and its length is 4 inches? [Hint: Let W(t) and L(t) be the width and length, respectively, at time t.]

Which linear inequality is represented by the graph? !

What is the equation of the line in point-slope form? y+ 4 = 1/2(x+4) y-4 = 1/2(x + 4) y-0 = 2(x - 4) y-4 = 2(8-0)

You are standing next to a really big circular lake. you want to measure the diameter of the lake, but you don't want to have to swim across with a measuring tape! you decide to walk around the perimeter of the lake and measure its circumference, and find that it's 400\pi\text{ m}400? m. what is the diameter dd of the lake?