Answers by Andrea Di Giorgi
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Answers by Andrea Di Giorgi

Answers by Andrea Di Giorgi
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The isotope calcium-41 decays into potassium-41, with a half-life of 1.03 × 10^5 years. There is a sample of calcium-41 containing 5 × 10^9 atoms. How many atoms of calcium-41 and potassium-41 will there
answered Nov 28, 2018
5 votes
116k views
Which of the following choices is the BEST example of a complete paragraph? a. Pets are great. Many families have pets. They can be a dog, a cat, or a fish. Dogs like to run outside. Dogs can be trained
answered Nov 27, 2018
5 votes
223k views
The link for notepad is located by default in the _______ menu. a. administrative tools b. accessories c. communications d. system tools
answered Jun 27, 2018
6 votes
220k views
PLEASE HELP identify the comma rule that the following sentence breaks: " In the early morning hours everything is silent and peaceful. " a.) use a comma to separate three or more items in a series. b.
answered Jun 19, 2018
3 votes
8.2k views
What is the quadratic equation written in standard form x^2-13x+20=-6
answered Apr 18, 2018
4 votes
103k views
Solve for x: 3-(2x-5)<-4(x+2)
answered Apr 14, 2018
6 votes
22.0k views
Simplify. 22÷(9+2) Helppppp
answered Sep 21, 2017
4 votes
108k views
why migit is believed that sir gawain and the green knight was written in the late 1300s, as the age of chivalry began to wane. though legend has it that gawain was one of arthur’s finest and most loyal
answered Apr 25, 2017
4 votes
118k views
Which feature is a characteristic of an epic? tragic written in prose heroic actions narrated in verse short narrative meant to be sung dialogue meant to be spoken aloud
answered Feb 1, 2017
2 votes
172k views
Is 3 km greater than 5,000 m
answered Mar 8, 2016
5 votes
142k views
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