What number has a greater value? 0.00009 or 0.0001.

0.0001 is the greater value

Step-by-step explanation:

It is a good idea to write both the values in the scientific notation and then compare which of the values is greater.

So, to convert 0.00009 in scientific notation, write the first value from the right most side and multiply it with 10 to the negative power of number of digits to the right side of the decimal to get:

0.00009 ---> 9 x 10^-5

And 0.0001 ---> 1 x 10^-4

Comparing 9 x 10^-5  and 1 x 10^-4, we can see that 1 x 10^-4 has a greater power than that of 9 x 10^-5.

Therefore, 0.0001 is the greater value.

2nd one in the first row is correct

just take the area of the square and then the area of the circle then subtract the circle area from the squares area

step-by-step explanation: