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(3.7x10^5)(3.0x10^4)does any one know how to solve it !!!!

Jorge_we

by Jorge_we at February 08, 2010

p.s. i love smilelys

scientific notation !!!!!!

Answers

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3.7 * (times) 10 * 10 * 10 * 10 *10  then 3.0 * 10 * 10 * 10 *10  then times both of those  answers  =   370,000 * 30,000 =  11,100,000,000.

ashlee ashlee February 08, 2010

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ashlee, your answer is correct, but there is a much easier way of finding the answer! Scientific notation was meant to be used to represent very large or very small numbers, so let's just keep each number as it is.Since it's a multiplication problem, we can separately do the math for the number part (3.7 and 3.0) and the power of tens part (10^5 and 10^4). 3.7 * 3.0 = 11.1, and 10^5 * 10^4 = 10^9.Now, you might think that your answer would be (11.1 * 10^9), but this is incorrect! Scientific notation requires that the number part is greater than 1 and less than 10. Therefore, we need to divide 11.1 by 10, then multiply 10^9 by 10 (to keep the values even).Now we have the answer: (1.11 * 10^10)Note: If this is a scientific problem such as chemistry, you may need to take significant figures into consideration. Since there were two sig` fig`s in each quantity, the true scientific answer is (1.1 * 10^10).~ Azaler

Azaler Azaler February 17, 2010

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