How many times larger is 9 × 10^8 than 3 × 10^-5? a. 3 × 10^13 b. 3 × 10^-40 c. 3 × 10^-13 d. 3 × 10^3

A. 3 × 10¹³

Step-by-step explanation:

We have the numbers, 9 × 10⁸ than 3 × 10⁻⁵.

To find the factor by which 9 × 10⁸ is greater by 3 × 10⁻⁵ is given by,

i.e.

i.e.

So, 9 × 10⁸ is 3 × 10¹³ times greater than 3 × 10⁻⁵.

i.e. 3 × 10⁻⁵ × 3 × 10¹³ = 3 × 3 × 10⁻⁵⁺¹³ = 9 × 10⁸.

Hence, option A is correct.

not only in mathematics, scientific proof also are required in the other field of science. also maths proofs are of particular structure, containing steps and logics. so proving is like doing science, it is science. that's why it is important to prove. 

an inaccurate proof leads to errors, or stating results that are not accurate.  which wil mess the probelm up you dont want this

ratio is 2 : 9

the answer is three

13.5 : 3