Apopulation of 510,000 toads is expected to shrink at a rate of 6.2% per year. which is the best prediction for the toad population in 18 years?
a. 478,380
b. 316,200
c. 161,147
d. 86,108

 c. 161,147

Step-by-step explanation:

The exponential decay function with rate of decay r in x years is given by :-

, where A is the initial population.

Given : Initial population of toads= 510,000

The rate of decay = 6.2%= 0.062

The population of toads after 18 years is given by :-

Hence, the best prediction for the toad population in 18 years is 161,147.

answer: the answer is 40.82

step-by-step explanation: 3.14 x 13(or half of 26) to the power of 2

x = 25

step-by-step explanation:

a^2+b^2=c^2

7^2+24^2=c^2

49+576=625

sqrt625=25

x=25