Questions by Derwyn

Questions by Derwyn

Calcium-49, a radioactive isotope, has a half-life of 9 minutes. If an 80-gram sample of the isotope decays for 27 minutes, how many grams of the original sample remain? Select one: a. 60 b. 10 c. 40 d.

asked Jul 28, 2023

1 answer

1 vote

120k views

What’s the first app to ever come out ?

asked Jul 7, 2023

2 answers

24 votes

14.5k views

hummingbirds get nectar from flowers, and they also distribute the pollen from the followers and help them to reproduce. this would be an example of…

asked Jul 2, 2023

1 answer

0 votes

28.9k views

End of Semester Test: Creative Writing 7 Select the correct answer. Which element in a story is generally useful for descriptions of settings and feelings? O A. metaphors 6 O B. dialogues O C. narratives

asked Feb 12, 2023

1 answer

1 vote

144k views

Which of these is not a characteristic of the salem witch trials

asked Feb 7, 2023

1 answer

0 votes

145k views

5. Given no other restrictions, what are the domain and range of the following function? f(x) = x2 – 2x + 2 OD= all real numbers R = {yl y> 1} OD = {xx> 1} R= all real numbers OD = all real numbers R=

asked Oct 25, 2022

1 answer

0 votes

84.0k views

In the context of the overall argument of the passage, which of the following choices best describes the purpose of the second paragraph? A. It gives a basic definition of REM sleep that is elaborated

asked Oct 10, 2022

2 answers

5 votes

110k views

Item 1 Which fraction is equivalent to 3.47? 3_23/50 3_47/100 3_12/25 I don't know.

asked Sep 3, 2022

2 answers

5 votes

3.6k views

Which sentence from the text contains a statistic that can be used to support the claim and reason? "... china tea sets became an essential part of the fashionable household, while less costly versions

asked Jun 22, 2021

2 answers

5 votes

137k views

What do the two arrows in the diagram most likely represent? O radiation O photosynthesis cellular respiration Oenergy transfers

asked Jun 5, 2021

1 answer

5 votes

184k views

write a equation in slope-intercept form for the line that is parallel to y=2x-8 and passes through the point(1,5).

asked Apr 5, 2021

1 answer

1 vote

166k views

What is something that you do NOT want to do when administering first aid following a disaster? .Question 1 options: A.Feed something to an unconscious victim B.Maintain body temperature C.Check for injuries

asked Mar 24, 2021

2 answers

1 vote

146k views

Xcerpt from Flatland Edwin A. Abbott 1) I call our world Flatland, not because we call it so, but to make its nature clearer to you, my happy readers, who are privileged to live in Space. 2) Imagine a

asked Feb 10, 2021

2 answers

3 votes

194k views

What were the political, economic and cultural forces that led to the Walla Walla Treaty? Do you agree with the terms of the treaty and the relocation of native people to reservations? Was the process

asked Dec 23, 2020

1 answer

0 votes

7.2k views

Process capability A. exists only in theory; it cannot be measured. B. exists when CPK is less than 1.0. C. is assured when the process is statistically in control. D. means that the natural variation

asked Feb 18, 2020

1 answer

5 votes

205k views

What three things make up a cause- and- effect paragraph

asked Feb 7, 2020

2 answers

0 votes

178k views

Medieval merchants were able to finance their work through a. appealing to the king. c. signing bills of exchange. b. gathering partners to invest. d. usury.

asked Nov 7, 2019

1 answer

3 votes

120k views

Im almost positive its the last one Jamie is reviewing a new diet plan that involves purchasing pre-packaged meals and taking a patented energy supplement. In an ad explaining how it works, Jamie reads

asked May 7, 2019

2 answers

0 votes

219k views

What is 2540 - 23/25

asked Apr 4, 2019

2 answers

1 vote

75.7k views

For certain species of tree, the height h, in meters, is approximated by the diameter d, in centimeters, using the formula (in the picture below). Which is closest to the diameter of a 45-meter tall tree

asked Oct 5, 2018

1 answer

4 votes

205k views

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