Kyle says 20x10^4 is the same as 20000. he reasoned that since he saw 4 as the exponent he should write 4 zeros in his answer. is kyle correct? doing my homework

Consider the expression .

Kyle solved this expression and got the answer as 20,000. He reasoned that since he saw 4 as the exponent, so he wrote 4 zeros in his answer. Kyle is incorrect.

Consider the expression , since there is 4 in the exponent. So, we can write 4 zeros in the answer.

So,

Now,

=

Therefore,   is the correct answer.

Therefore, Kyle is not correct.