Question

tation (b) 0.00001459 (c) 0.000005 (d) 0.000000000 3 Simplify the following expressions by converting them into scientific (b) 0.0000000004096 S (c) 0.00064 notations. 7 TH 1€ 8 (a) 0.0000625 0.0005 T р 0.00016807 Observe than ​

Answer 1

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All numbers in scientific notation or standard

form are written in the form m x 10n, where m is a number between 1 and 10 (1 ≤ Iml < 10 ) and the exponent n is a positive or negative integer.

To convert 0.0005 into scientific notation, follow these steps:

Move the decimal 4 times to right in the number so that the resulting number, m = 5, is greater than or equal to 1 but less than 10

Since we moved the decimal to the right the exponent n is negative

n = -4

Write in the scientific notation form, m x 10n

= 5 x 10-4

Therefore, the decimal number 0.0005 written in scientific notation is 5 x 10-4 and it has 1 significant figures.

Hope it's helpful to you ☺️❣️