Question

Round 0.0004567 to the nearest millionth and write the rounded number in scientific notation

Answer 1

Answer:

Rounded to nearest millionth  $0.0004570$

In scientific notation, $0.0004570=4.57\times 10^{-4}$

Step-by-step explanation:

Given : Number  0.0004567

To find : Round the number to the nearest millionth and write the rounded number in scientific notation ?

Solution :  

Ones Tenths Hundredths Thousandths Ten Th. Hundred Th. Millionths Ten M.

  0           0            0                 0                  4               5                   6             7

So, The millionth place value is 6.

After that at ten millionths the place value is 7 greater than 5 so it round upto 1,

i.e. the number became $0.0004570$

In scientific notation count the decimals and place in terms of power 10,

$0.0004570=4.57\times 10^{-4}$

Answer 2

Answer:

457 * 10 ^-6

Step-by-step explanation:

Scientific notation is basically multiplying the decimal so that it becomes a non-decimal number. You would move the decimal six places forward to the millionth place, and then multiply the number at the end of the decimal by 10, and then put the 10 to the power of however many decimal places you moved (in negatives, since you're moving backward).