Questions by Roy Cohen

Questions by Roy Cohen

Using separation of variables, solve the differential equation dB/dt = -k(B-24) for B B(0)=28

asked Oct 21, 2020

1 answer

0 votes

159k views

A population of lizards lives on Island A. On nearby Island B, another population of the same species is present. The lizards on Island A have evolved to have a large frill around their necks. The lizards

asked Sep 27, 2020

1 answer

3 votes

225k views

Select the number property that will justify the step in the following expression. 2(5 • 17) = (2 • 5) 17 = associative - multiplicationassociative - additioncommutative - multiplicationidentity - addition

asked Jun 26, 2020

2 answers

2 votes

100k views

Acid‑catalyzed dehydration of secondary and tertiary alcohols proceeds through an E1 mechanism. The first step is the protonation of the alcohol oxygen to form an oxonium ion. Dehydration of 3‑methyl‑2‑butanol

asked Jun 8, 2020

1 answer

2 votes

168k views

What is the interquartile range of this data set? 2, 5, 9, 11, 18, 30, 42, 55, 58, 73, 81

asked Mar 2, 2020

1 answer

0 votes

87.4k views

12 divided by 5 and 9/11

asked Aug 8, 2019

2 answers

2 votes

231k views

I need help for this! (Screenshot)

asked Jan 24, 2019

1 answer

4 votes

172k views

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