Mathematics, 17.01.2020 12:31 genyjoannerubiera
Awildlife service wanted to estimate the number of alligators in a river so they tagged 90 alligators and released them back into the river. later they found that a sample of 200 alligators contained 23 that were tagged. assuming that the tagged alligators are evenly distributed, what is the best estimate of the number of alligators in the river?
this is from a practice test i found online for a placement test for a community college. i have never encountered these type of word problems before. i don't even know where to start.
Answers: 2
Mathematics, 21.06.2019 22:00
Mrs. avila is buying a wallpaper border to go on all of her kitchen walls. she wants to buy 5 extra feet of wallpaper border than she needs to be sure she has enough. she buys 55.5 feet of the border. the store owner selling the border uses the width of mrs. avila's kitchen to determine that the length of her kitchen must be 14.5 feet.
Answers: 2
Mathematics, 22.06.2019 00:00
Let u = {q, r, s, t, u, v, w, x, y, z} a = {q, s, u, w, y} b = {q, s, y, z} c = {v, w, x, y, z}. list the elements in the set.a ∩ (b ∪ c)a) {q, s, w, y}b) {q, y, z}c) {q, s, u, w, y, z}d) {q, r, w, y, z}
Answers: 1
Awildlife service wanted to estimate the number of alligators in a river so they tagged 90 alligator...
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