Question

Which number is not in scientific notation:

a. 9 x 10 to the power of 19 ,
b. 7.8 x 10 to the power of 6 ,
c. 1.45 x 10 to the power of negative 7 ,
d. 0.33 x 10 to the power of negative 15

Answer 1

The number that is not in scientific notation is d. 0.33 x 10^-15.

Step-by-step explanation:

The number that is not in scientific notation is d. 0.33 x 10-15.

Scientific notation is a way to represent numbers that are very large or very small. It consists of a number between 1 and 10, multiplied by a power of 10. In option d, the number before the multiplication sign is less than 1, which is not in the proper form for scientific notation. To rewrite it in scientific notation, we can express it as 3.3 x 10-1 multiplied by 10-14 to get 3.3 x 10-15.