Question

Q # 6 please help to resolve

Answer 1

The answer is D) 0.0000000692

Explanation:
Since the equation is 
6.92 * 10^ -8
You know that you need to move the decimal 8 places to the left ( left is negative, right is positive)

If you move the decimal 8 places to the left the decimal still needs to pass the 6, so there will actually be 7 zeroes instead of 8.

Answer 2

To write a scientific notation number in standard notation, move the decimal point the number of the exponent. It it is a negative exponent, the decimal point moves to the left.
 The exponent in this problem is -8, so you need to move the decimal point 8 places to the left.

6.92 becomes 0.0000000692

The answer would have 7 zeros.

 The last choice is correct.