SOLUTION: how do i write 2500^200 in scientific notation?

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Question 287454: how do i write 2500^200 in scientific notation?
Answer by Edwin McCravy(20064) About Me  (Show Source):
You can put this solution on YOUR website!
how do i write 2500^200 in scientific notation


Let x=2500%5E200

Take logs of both side:

log%2810%2Cx%29=log%2810%2C2500%5E200%29

Use the rule of logs that says log%28B%2CA%5EC%29+=+C%2Alog%28B%2CA%29

log%2810%2Cx%29=200%2Alog%2810%2C2500%29

Get your calculator and find log%2810%2C2500%29=3.397940009
then multiply by 200 and get 679.5880017

log%2810%2Cx%29=679.5880017

Use the rule of logarithms that says the equation 

log%28B%2CA%29=C is equivalent to A+=+B%5EC

So

log%2810%2Cx%29=679.5880017

is equivalent to

x=10%5E679.5880017

Break the exponent into the sum of an integer and a decimal:

x=10%5E%28679%2B.5880017%29%29

Since we know that we add exponents when we multiply two
exponentials with the same base, we therefore know that if we see
two added exponents we, can rewrite them as the multiplication
of two exponentials with the same base:

x=10%5E679%29%2810%5E.5880017%29

Use the calculator to find 10%5E.5880017=3.872591915

x=10%5E679%29%283.872591915%29

Rearrange the factors to scientific notation form:

x=3.872591915%22%D7%2210%5E679

Edwin