0.0246 x 10-2 and 567.8 x 10² written in scientific notation

0.0246 x 10^-2 and 567.8 x 10² written in scientific notation?

They are not written in scientific notation

In scientific notation:

0.0246 x 10^-2 = 2.46 x 10^-4

567.8 x 10² =  5.678 x 10^4

third option: 6x+8

step-by-step explanation:

we can see that the given question is a sum of series and the values of n vary from 0 to 3

the first term will be:

when n=0, [(0)*x+2] => (0+2) => 2

when n=1, [(1)*x+2] => (x+2) => x+2

when n=2, [(2)*x+2] => 2x+2

when n=4, [(3)*x+2] => 3x+2

so adding up all the terms will give us:

=2+x+2+2x+2+3x+2

=x+2x+3x+2+2+2+2

=6x+8

so,

third option is the correct answer ..

it would take 7/10 of an hour too fill the pool.

step-by-step explanation: