18,020=120(1-(1+0.4233)^-n/0.4233)< br />
i need to figure out what the value -n is

all the calculators i've used say it's not a real number, but i need it to be for a project. can i also get a step by step?

it's due tomorrow

i'll give a brainliest

Start with

Divide both sides by 120:

Simplify the dfraction on the left hand side, and the sum in the parenthesis of the right hand side:

Subtract 1 from both sides:

Change side to both sides:

Simplify the left hand side:

Multiply both sides by 0.4233:

Simplify the left hand side:

Apply the definition of negative exponents:

Invert both sides:

This is why the equation is impossible: the function is an exponential function, and as such, it is always positive. So, there cannot be a value for such that the last equation is satisfied.

hey seth! : )

i’m not 100% sure, but i think it’s b

hope this ya : p

miss u!

- nicole

what is the original number? you forgot to add it.