Question

The surface area of an oil spill gets 105% larger every day, represented by the function
s(x) = (1.05)x − 1. On the first day, it covered an area of 31 square meters. Which function would be used to find the area of the oil spill on the 15th day

Answer 1

@campbell_st

Answer 2

well there seems to be something missing in the way you have written the question.

is it

\[s(x) = 31 \times\ (1.05)^{x -1}\]

Answer 3

yes @campbell_st

Answer 4

ok... so x = 15, just substitute and calculate to find the surface area

Answer 5

I know but my choices are:
s(x)=1.05(31)^x-1 or
s(x)=31(1.05)^x-1
would it be the second choice?

Answer 6

@campbell_st

Answer 7

its the 2nd choice