Answers by Haonan Chen
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Answers by Haonan Chen

Answers by Haonan Chen
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Suppose the isotopic ratio of the two boron isotopes 10B (10.013 amu) and 11B (11.009 amu) in a sample has been altered from the ratio found in nature and now contains 33.36% 10B in the sample. Determine
answered Sep 19, 2021
1 vote
81.0k views
Divide. 5892 ÷ 18 in fraction form.
answered Aug 28, 2021
6 votes
206k views
A 15 year old high school student wishing to join the school’s football and basketball teams presents to your office for a sports physical. As a part of the physical, you perform a hernia check. You notice
answered Aug 16, 2021
1 vote
129k views
Which of the following pieces of home-made equipment is appropriate for use? A piece of rug and a rope that your mother gave you Empty chlorine buckets filled with water Your grandfather's hammer and fishing
answered Jul 25, 2021
4 votes
175k views
57:03 Geographers use two key questions every day. When using these two key questions to study the migration of birds, a geographer would ask "where are the birds going?" and "__________?" A. what season
answered Jul 25, 2021
0 votes
55.1k views
Which point on the graph represents the y-intercept?
answered May 27, 2021
3 votes
146k views
A train traveled at 62 miles per hour for 7.5 hours. How far did the train travel in 7.5 hours? Use the formula D = r x t d=distance r=rate t=time
answered May 8, 2021
5 votes
232k views
What would 1/8 of 16 be?
answered Mar 6, 2021
5 votes
196k views
127/n=635 what is the value of n?
answered Feb 9, 2021
4 votes
159k views
Which of the following is an alkaline earth metal. Hh
answered Feb 6, 2021
1 vote
203k views
A(1) = 20 a(n) = a(n - 1) x 3/2 What is the 3rd term in the sequence?
answered Feb 3, 2021
5 votes
22.3k views
Stacy is making a scale drawing of her backyard. There is a triangular-shaped flower garden with dimensions of 6feet, 8feet, and 10ft. She is using the scale 1inch=2feet. Find the perimeter of the flower
answered Sep 11, 2020
0 votes
114k views
A student is examining a current map of the world. Which question might the student ask about the map if she wants to focus on an economic historical theme? O A. What countries make up Oceania? O B. What
answered Sep 3, 2020
4 votes
166k views
A country’s wealth has little effect on the health and welfare of that country's population. true or false
answered Aug 20, 2020
5 votes
146k views
Suppose Eva has 12 3/4 pounds of flour. The day’s baking will require that amount. How much flour will Eva need ?
answered Apr 21, 2020
2 votes
179k views
What is the average rate of change of the function over the interval x = 0 to x = 6? f(x)=2x−13x+5 Enter your answer, as a fraction, in the box.
answered Feb 14, 2020
1 vote
35.0k views
A force of 1 N is applied to a 1-kg mass. What acceleration does the force produce
answered Jan 14, 2020
1 vote
186k views
A store has a pair of boots that originally cost $56 marked down 25%. How much will the boots cost on sale?
answered Jun 3, 2019
2 votes
153k views
What’s 1500 times 150000
answered Apr 8, 2019
6 votes
229k views
What caused the japanese emperor to have reduced power after the war?
answered Jan 31, 2019
6 votes
37.1k views
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