Question

Which of the following equals 0.000001?

A.1 x 10^-5
B.1 x 10^-6
C.1 x 10^-7
D.1 x 10^-8

Answer 1

Answer: The correct option is (B)
`1* 10^(-6).`

Step-by-step explanation: We are to select the correct number from the options that is equal to 0.000001.

Option (A) is

`1* 10^(-5).`

We have

`1* 10^(-5)=(1)/(10^5)=(1)/(100000)=0.00001\\eq 0.000001.`

So, this option is not correct.

Option (B) is

`1* 10^(-6).`

We have

`1* 10^(-6)=(1)/(10^7)=(1)/(1000000)=0.000001.`

So, this option is CORRECT.

Option (C) is

`1* 10^(-7).`

We have

`1* 10^(-7)=(1)/(10^7)=(1)/(10000000)=0.0000001\\eq 0.000001.`

So, this option is not correct.

Option (D) is

`1* 10^(-8).`

We have

`1* 10^(-8)=(1)/(10^8)=(1)/(100000000)=0.00000001\\eq 0.000001.`

So, this option is not correct.

Thus, the correct option is (B).

Answer 2

The best option is B. 1*10^-6.