Practice for Lesson 3.1 For Exercises 1-2, draw an arrow diagram to represent the expression. Then evaluate the expression for m = 21. 1. m/3 + 12
2. m + 12/ 3

An architect is designing a water fountain for a park she uses the given function to model the water jet flowing from the fountain nozzles where h(x) gives the height of the water jugs in feet x feet from the starting point h(x)=-1/20x+x+15

Iknow the answer but the calculator doesn't seem to give the right one

Andy wants to find the distance d across a river. he located points as shown in the figure, then use similar triangles to find that d = 223.5 feet. how can you tell without calculating that he must be wrong? tell what you think he did wrong and correct his error. round your answer to the nearest tenth if necessary. andy must have used the wrong . the distance d is actually feet.