Answers by Simon Opelt
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Answers by Simon Opelt

Answers by Simon Opelt
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An element decays by 50% every hour (in other words, it has an hour half-life). If you have 48 grams of the element, then how many grams will there be in 5 hours?
answered Oct 24, 2023
11 votes
50.8k views
Briefly explain why experiments having faulty design or inconsistent data are problems for scientists. List several reasons
answered Sep 14, 2023
5 votes
220k views
D. In the book of Exodus, the Bible tells of Moses leading the Hebrews out of Egypt, where they were slaves, and into the promised land of Canaan. When they came to the Red Sea, the Egyptians were behind
answered Jul 3, 2023
2 votes
78.5k views
Mabel drew a scale drawing of a campsite. The tent is 2 inches wide in the drawing. The actual tent is 8 feet wide. What scale did Mabel use for the drawing? 1 inch : feet Submit
answered May 14, 2023
5 votes
76.2k views
Which malicious activity is designed to obtain sensitive information by sending an official-looking email? O Trojan virus O Phishing O Computer bug O URL redirection
answered Apr 15, 2023
4 votes
70.5k views
When monomers are joined together, what do they form? A. Alkanes B. Aromatics C. Saturated alkenes D. Polymers
answered Apr 7, 2023
3 votes
69.4k views
What is I give you 2 cats another 2 cats and another 2 cats how many cats you have
answered Mar 7, 2023
5 votes
137k views
Which action is most likely to contribute to a positive self-image? listing negative qualities comparing oneself to others isolating oneself during hard times saying daily positive affirmations
answered Feb 13, 2023
7 votes
103k views
I need help with finding the percent. Please help me with this
answered Jan 2, 2023
5 votes
158k views
Someone help?!.........
answered Dec 31, 2022
7 votes
28.2k views
William needs to work out the size of angle Y in this diagram One of William’s reasons are wrong. Write down the correct reason.
answered Aug 29, 2022
2 votes
226k views
Pleaseee help me!!! I need the answer!
answered Aug 5, 2022
11 votes
95.0k views
Consider a collection C of subsets of a nite set V . (V; C) is called a hypergraph. A hypergraph (V; C) is 3-regular if every subset in C contains exactly three elements. A subcollection M of C is matching
answered Jun 16, 2022
4 votes
137k views
I need help filling in the blanks
answered Jan 12, 2022
2 votes
146k views
Pleaseeee help! I don't get this!! Please leave a detailed explanation of how you got your answer!!!
answered Dec 17, 2021
4 votes
31.2k views
What is the domain and range of this graph
answered Oct 15, 2021
1 vote
168k views
Triangle ABC is similar to triangle RST, which is formed using RS, as shown. What could be the coordinates of point T? (–4,0) (–4,1) (1,–4) (0,–4)
answered Oct 12, 2021
3 votes
212k views
Consider the numerous individuals and groups who would like to have access to the Grand Canyon for a variety of activities. Which are reasonable approaches to prevent damage/overuse and are also fair and
answered Jun 19, 2021
3 votes
45.8k views
Is the answer d? If not can someone explain
answered May 20, 2021
0 votes
82.1k views
Label the following sentence errors
answered Mar 13, 2021
2 votes
153k views
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