Question

I need help please and thank you i will mark brainlest!

Answer 1

Answer:

$2.2\times 10^{7}$

Step-by-step explanation:

We have to subtract the two numbers given in scientific notation.

First number is $3.4\times 10^{7}$

And the second number is $1.2\times 10^{7}$

By subtracting second number from the first,

$(3.4\times 10^{7})-(1.2\times 10^{7})$

Take out the common term $10^{7}$ and then subtract the coefficients,

= $(3.4 - 1.2)\times 10^{7}$

= $2.2\times 10^{7}$

Therefore, $2.2\times 10^{7}$ will be the answer.