A straight section of railroad track crosses two highways 400m and 600m from an intersection. The equation of the rail track is . Determine the area of the largest rectancular lot that can be laid out in the triangle formed by the railroad and highways so that the sides of the lot are parallel to the roads.

Consider the linear function that is represented by the equation y= 4x+5

Paula makes stained-glass windows and sells them to boutique stores. if her costs total $12,000 per year plus $4 per window for the frame. how many windows must she produce to earn a profit of at least $48,000 in one year if she sells the windows for $28 each? 1. define a variable for the situation. 2. write an inequality that represents her profit. note: revenue is money coming in. cost is money going out. profit is the difference between the revenue and the cost. in other words: revenue - costs profit 3.using words, describe how many windows she must sell to have a profit of at least $48,000.

True or false? the sum of the differences (% - 7) is never zero for any distribution consisting of n observations.