Answer:
A 2 by 2 inch square has an area of 4 square inches.
If its area is increased by 21 inches, then its area equals 25 square inches.
To find the length of the side we take the square root of 25 square inches which is 5 inches.
Step-by-step explanation:
Answer:
1. D
2. D
3.B
4. there's no picture there
5. C
6. A
7. B
8. C
9. C
10. C
Step-by-step explanation:
Hope this helps :)
Answer:
24 days
Step-by-step explanation:
Let the permissible time be Ro
Let the initial activity be R= 8Ro
From;
0.693/t1/2 × t= 2.303 log R/Ro
Half life of the radionuclide= t1/2 = 8 days.
Hence;
0.693/8 × t = 2.303 log 8
t= 2.1/0.087
t= 24 days
The answer is 248!grains I think this one I think is easy
It is not direct variation because direct variation has to include, the point is ( 0+0)