The formula a=1/2hb1 +1/2hb2 the area of a trapezoid, as a function of the height and the two bases , b1 and b2. for a trapezoid-shaped garden with one base measuring 16 feet a height of 12 feet and an area of 168 square feet. 168=1/2(12)16+1/2(12)b2 what is the length b2 in inches

Jamie is hiking up a small mountain. he climbs up at a constant rate of 300 feet/hour until he reaches the peak at 1,500 feet. after that, he hikes down at the same rate to the base of the mountain. the equation that models jamie’s elevation, e, after t hours is e = . jamie’s elevation will be 600 feet after hours and after hours.

Bruce is getting materials for a chemistry experiment his teacher gives him a container that has 0.25 liter of liquid in it.bruce need to use 0.4 of this liquid for the experiment. how much liquid will bruce use?

Does the problem involve permutations or? combinations? do not solve. the matching section of an exam has 4 questions and 7 possible answers. in how many different ways can a student answer the 4 ? questions, if none of the answer choices can be? repeated?