Math :(
posted by I Dont Matter
Please help me with this. Can you explain to me how to find the answer?
Multiply 3.8*10^8 by 7.2*10^3, leave your answer in a scientific notation.
2.736*10^4
2.736*10^5
2.736*10^6
27.36*10^5
Honestly, I don't the answer to the question So please forgive the wrong answer if I pick the wrong answer.

Damon
well, try 4 *10^8 * 7*10^3
= 28 * 10^(83)
= 28 * 10^5
BUT we are only allowed one digit left of decimal point
= 2.8 * 10^1 * 10^5
=2.8 * 10^6
which is pretty much like 2.736*10^6 
Steve
you need a number at least 1, and less than 10
and a power of 10.
For this problem, multiply the numbers and add the powers of 10.
Then simplify to scientific notation.
3.8*10^8 by 7.2*10^3
= (3.8 * 7.2) * 10^(83)
= 27.36 * 10^5
but, 27 > 10, so
= (2.736 * 10^1) * 10^5
= 2.736 * 10^6 
Me
Thank you Damon for helping him. I was trying to figure this question out but i got stumped. What is ^ as a math symbol and what does it represent ?

Damon
^ means superscript
2^3 means 2 to the third power = 2*2*2 = 8 
Damon
By the way that ^ is not really a math symbol but a keyboard convention.

I Dont Matter
IDK why this comment got deleted. I don't like being referred to as him. I'm a girl who put I Don't Matter as her username. There's nothing wrong with correcting people about what gender I am. I can understand that he probably was assuming, but I have every right to correct him. So don't delete this comment
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