Given:
The insect population function is:
Where x is the number of weeks.
To find:
The population after 4 weeks.
Solution:
The population of insect after x weeks is given by:
We need to find the population after 4 weeks.
After substituting , we get
The population after 4 weeks is 160. Therefore, the correct option is C.
Step-by-step explanation:
1. a²=25²-15²
a²=(25-15)(25+15)
a²=10×40
a=20
2.b²=10²-6²
b²=(10-6) ×(10+6)
b²=4×16
b=8
The answer is 25% XDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDd
2.5 kilometers=2500 meters
2500-1950=550 meters