Mathematics, 02.10.2019 07:00 lisagrimmett3
Arlene is showing her work in simplifying β7.9 + 8.2 β 3.4 + 2.1. identify any errors in her work or in her reasoning. write feedback to arlene explaining the mistake she made and how to correct her work.
original problem
β7.9 + 8.2 β 3.4 + 2.1
step work reasoning
1 β7.9 + 8.2 + (β3.4) + 2.1 additive inverse
2 β7.9 + (β3.4) + 8.2 + 2.1 associative property
3 (β7.9 + (β3.4)) + (8.2 + 2.1) commutative property
4 β11.3 + 10.3 simplify
5 β1 simplify
Answers: 1
Mathematics, 21.06.2019 15:20
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Mathematics, 21.06.2019 20:20
Abag contains 3 red marbles, 2 blue marbles, and 2 green marbles. one marble is picked, then another marble. assume that the selections are made with replacement. a) find the probability of picking two red marbles with replacement. b) find the probability of picking a red marble and a blue marble. assume the selections are made without replacement. c) find the probability of picking two red marbles without replacement. d) find the probability of picking a red marble and a blue marble without replacement.
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Mathematics, 21.06.2019 22:00
20 points 1. your friend, taylor, missed class today and needs some identifying solutions to systems. explain to taylor how to find the solution(s) of any system using its graph. 2. taylor graphs the system below on her graphing calculator and decides that f(x)=g(x) at x=0, x=1, and x=3. provide taylor some feedback that explains which part of her answer is incorrect and why it is incorrect. f(x)=2x+1 g(x)=2x^2+1
Answers: 2
Arlene is showing her work in simplifying β7.9 + 8.2 β 3.4 + 2.1. identify any errors in her work or...
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