Find the exact values of sin(u/2), cos(u/2), and tan(u/2) using the half-angle formulas. cot(u) = 3, < u < 3/2

In the equations, a and b represent the price per night for a room in hotel a and hotel b, respectively, w weeks after september 1 last autumn. what was the price per night in hotel a when it was equal to the price per night in hotel b? a = 240 − 20w b = 320 − 30w

Manny bought 12 pounds of vegetables at the supermarket. 75% of the vegetables were on sale. how many pounds of vegetables were not on sale? 98 points : )

Ineed with number 6 , explain how to get 1978