Mathematics OpenStudy (anonymous):

Simplify the expression. Write the answer using scientific notation (4x10to the 11th)-2 square OpenStudy (anonymous):

Does it look this? $(4\times10^{11})-2^{2}$ OpenStudy (anonymous):

yes OpenStudy (anonymous):

What are you having trouble with? The simplification or the scientific notation? OpenStudy (anonymous):

the simplification OpenStudy (anonymous):

Do you know how to simplify exponents? OpenStudy (anonymous):

nope OpenStudy (anonymous):

$3^{2}=3\times3=9$ $4^{3}=4\times4\times4=64$ OpenStudy (anonymous):

do you understand how I got these numbers? OpenStudy (anonymous):

you multiplied the, by the exponents OpenStudy (anonymous):

But if I multiplied the number by the exponents,$4^{3}=12$ OpenStudy (anonymous):

that's wrong OpenStudy (anonymous):

What I did was multiply the base (the bigger number) t times(The little number is t) OpenStudy (anonymous):

because you are supposed to multiply 4 three times. OpenStudy (anonymous):

exactly. Then what does $2^{2}=?$ OpenStudy (anonymous):

4 OpenStudy (anonymous):

and $10^{11}=?$ OpenStudy (anonymous):

or do you have trouble with that? OpenStudy (anonymous):

I'm trying to figure that out. my calculator just keeps telling me 1e+11 OpenStudy (anonymous):

ohhh OpenStudy (anonymous):

ok. So what does 10x10=? OpenStudy (anonymous):

and the 2to the -2 square was just a -2 as an exponent. No base OpenStudy (anonymous):

100 OpenStudy (anonymous):

and then 10x10x10? OpenStudy (anonymous):

1000 OpenStudy (anonymous): OpenStudy (anonymous):

yup OpenStudy (anonymous):

So if your exponent is 10^11... OpenStudy (anonymous):

expression, rather OpenStudy (anonymous):

It would be 1 with 11 zeros behind it, or , 10000000000 OpenStudy (anonymous):

right? OpenStudy (anonymous):

If you just want the answer, it's $6.25×10^{-24}$

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