Math question about scientific notation?
2017-02-06 12:16 pm
What is the product of 8.4x10^8 and 4.2x10^3 written in scientific notation? Please tell steps, we are doing test correcting and I know the answer is 3.528x10^12 but how? Thanks best answer awarded
回答 (2)
2017-02-06 12:57 pm
✔ 最佳答案
(8.4×10⁸)(4.2×10³) = (8.4×4.2)(10⁸×10³)= (35.28)(10⁸⁺³)
= 35.28×10¹¹
= 3.528×10¹²
2017-02-06 12:57 pm
Multiply the digit terms - 8.4 x 4.2= 35.28
Add exponents - 8+3 = 12
Thats how you get your exponent terms
Scientific notation is a way to represent really large or really small numbers in a way that's a little more digestible for most people.
Your coefficient cant be greater than 9. thats the rule, so thats why its 3.528 and not 35.28. Difficulfty explaining this. sorry
Add exponents - 8+3 = 12
Thats how you get your exponent terms
Scientific notation is a way to represent really large or really small numbers in a way that's a little more digestible for most people.
Your coefficient cant be greater than 9. thats the rule, so thats why its 3.528 and not 35.28. Difficulfty explaining this. sorry
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