Answer:
Step-by-step explanation:
http://www.ametys.ma/sites/default/files/webform/03_0.html
http://www.ametys.ma/sites/default/files/webform/04_0.html
http://www.ametys.ma/sites/default/files/webform/05_0.html
Answer:
212.9 years
Step-by-step explanation:
Given that the half-life of cesium-137 is 30 years. Suppose we have a 170 mg sample
P0 = 175
P(30) = 87.5
So we can write equation as

b) After 60 years t = 30
In 30 years it becomes half and hence in 60 years it would become 1/4
i.e.
mg
c) If P(t) =1, let us find t

212.9
Find the number in the hundredth place
7
7
and look one place to the right for the rounding digit
1
1
. Round up if this number is greater than or equal to
5
5
and round down if it is less than
5
5
.
10.27
Answer:
Hey there!
The robot moves 63 cm in 9 seconds. Then in 1 second, it moves 7 cm.
If it goes 49 cm, it will take 7 seconds.
Let me know if this helps :)
Step-by-step explanation:
Rudra should have collected the students equally both from football and pump basketball