Answers by Tristan Tao
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Answers by Tristan Tao

Answers by Tristan Tao
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A rock sample contains 7.5 g of Californium-249 and 52.5 g of the daughter isotope. If the half life of Californium-249 is 360 days, how old is the rock?
answered May 23, 2022
7 votes
180k views
ANSWER FAST 1. x+7=16 2. 19=x-6
answered Mar 14, 2022
1 vote
187k views
How might the body treat viruses?
answered Mar 12, 2022
9 votes
225k views
What would be the kinetic energy of a 2 kg bowling ball moving 2m/s? KE = 1/2 mass x velocity x velocity 8 J 4 J 2 J
answered Nov 14, 2021
2 votes
188k views
large bodies of water such as lakes and oceans do not quickly fluctuate in temperature what is the reason for this phenomenon
answered Sep 22, 2021
3 votes
66.8k views
hich describes how the 14th Amendment affected the balance of power in the United States? The states gained the power to declare federal laws unconstitutional. The federal government gained the power to
answered Jul 16, 2021
3 votes
234k views
He table below shows the distance a train traveled over time. How can you determine the equation that represents this relationship? Time (s) Distance (m) 2 25 4 50 6 75 8 100
answered Jul 12, 2021
4 votes
149k views
Successful Web sites such as StumbleUpon ( www.stumbleupon) and Digg ( www.digg) use ____ by inviting their visitors to vote on recommended Web sites, articles, restaurants, photos, or videos, for example,
answered Jul 12, 2021
0 votes
84.1k views
John wants to buy a laptop that costs $1400. He already saved $800 and makes $25 a week mowing lawns. Write and solve an equation to find the number of weeks, w, he must work until he has enough money
answered Jun 12, 2021
2 votes
168k views
The double number line shows that 4 pounds of tomatoes cost $14. How much does it cost for 1 pound of tomatoes
answered May 26, 2021
2 votes
145k views
In which type of government do citizens vote for officials?
answered May 8, 2021
6 votes
210k views
Which species is believed to be the first creature to walk erect and possibly be the first hominin?
answered Mar 11, 2021
7 votes
220k views
Joe makes $54K annually. What is Joe’s monthly salary?
answered Mar 11, 2021
3 votes
4.0k views
How to find rationalizing factor of class 9​
answered Mar 5, 2021
2 votes
167k views
A man has a mass of 50 kg on earth and travels to another planet where the acceleration due to gravity is 2.5 m/s2. What is the mass of this man on this other planet?
answered Jan 25, 2021
1 vote
131k views
Find the slope of (7, 9) and (2, 12)
answered Jan 11, 2021
3 votes
24.8k views
Multiply Conjugates (r+1/4)r-1/4)
answered Oct 4, 2020
0 votes
157k views
A cartographer is going to map your country. What type of map are they most likely to create? Why? Explain what features would be included in this type of map.
answered Sep 29, 2020
5 votes
174k views
The formulas used to analyze the horizontal and vertical motion of projectiles launched at an angle involve the use of which function(s)?
answered Aug 10, 2020
3 votes
863 views
What must occur for air masses to form fronts? They must increase in strength. They must collide with each other. They must move from west to east. They must create air-pressure differences.​
answered Jul 7, 2020
5 votes
182k views
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