lexiejohnson1971
contestada

Suppose your allowance is $2 now, and it will
double every week. Write an exponential expression for your allowance 20 weeks from
now. Then use your calculator to calculate your allowance at that time.​

Respuesta :

An exponential expression to represent your allowance 20 weeks from now would be:

2^20

This is correct since we are basically multiply 2 by itself for twenty times.

Now, we solve it.

2^20 = 1048576

Thus, your allowance by the end of 20 weeks is $1,048,575.

You would be a millionaire by then.

tramserran

Answer: f(x) = 2(2)ˣ

              f(20) = $2,097,152

Step-by-step explanation:

Use the exponential formula:  f(x) = a(b)ˣ   where

  • a = initial (starting) amount
  • b = rate
  • x = time

Given: a = 2, b = 2

Equation: f(x) = 2(2)ˣ

                f(20) = 2(2)²⁰

                         = 2,097,152