標題:
F.2 maths (1 short question only)
發問:
1. without using a calculator, find the values of the following expressions, and express your answers in scientific notation. (a) (3 000 000)^3 / 5 400 000 000 *please show the process, thanks.
最佳解答:
3 000 000=3x10^6 54 00 000 000=54x108=2x3^3x10^8 (3 000 000)^3=3^3x10^18 SO,(3 000 000)^3 / 5 400 000 000 =(3^3x10^18)/(2x3^3x10^8) =(10^10)/2 =5x10^9
其他解答:
3 000 000^3/ 5 400 000 000 = (3x10^6)^3/(5.4x10^9) = (2.7x10^19)/(5.4x10^9) = (1x10^10)/2 = 5x10^9
F.2 maths (1 short question only)
發問:
1. without using a calculator, find the values of the following expressions, and express your answers in scientific notation. (a) (3 000 000)^3 / 5 400 000 000 *please show the process, thanks.
最佳解答:
3 000 000=3x10^6 54 00 000 000=54x108=2x3^3x10^8 (3 000 000)^3=3^3x10^18 SO,(3 000 000)^3 / 5 400 000 000 =(3^3x10^18)/(2x3^3x10^8) =(10^10)/2 =5x10^9
其他解答:
3 000 000^3/ 5 400 000 000 = (3x10^6)^3/(5.4x10^9) = (2.7x10^19)/(5.4x10^9) = (1x10^10)/2 = 5x10^9
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