Mathematics, 21.04.2020 01:25 janaiartia
A brick staircase has a total of 20 steps The bottom step requires 100 bricks. Each successive step requires 3 fewer bricks than the prior one. How many bricks are required to build the staircase?
A) 2570 bricks
B) 1400 bricks
C) 2860 bricks
D) 1430 bricks
Answers: 1
Mathematics, 21.06.2019 19:40, marshallmattah
Suppose that 3% of all athletes are using the endurance-enhancing hormone epo (you should be able to simply compute the percentage of all athletes that are not using epo). for our purposes, a “positive” test result is one that indicates presence of epo in an athlete’s bloodstream. the probability of a positive result, given the presence of epo is .99. the probability of a negative result, when epo is not present, is .90. what is the probability that a randomly selected athlete tests positive for epo? 0.0297
Answers: 1
Mathematics, 21.06.2019 22:40, GodlyGamer8239
20.ju inces. which ordered pair is a viable solution if x represents the number of books he orders and y represents the total weight of the books, in ounces? (-3,-18) (-0.5, -3) (0,0) (0.5, 3)
Answers: 1
A brick staircase has a total of 20 steps The bottom step requires 100 bricks. Each successive step...
History, 15.08.2020 20:01