please check. thanks.
(8.3 x 10^-15) (7.7 x 10^4) = 6.391 x 10^-10
Is that right?
To check the multiplication result, you can multiply the numbers inside the parentheses and calculate the exponent separately:
(8.3 x 10^-15) x (7.7 x 10^4)
Multiplying the numbers inside the parentheses gives:
8.3 x 7.7 = 63.91
For the exponents, we add the powers of 10:
10^-15 x 10^4 = 10^-15+4 = 10^-11
Combining the numbers and the exponent:
63.91 x 10^-11 = 6.391 x 10^-10
Therefore, the original expression (8.3 x 10^-15) (7.7 x 10^4) = 6.391 x 10^-10 is correct.