Question

(8*10^4)*(2.5*10^-7)

Answer 1

Все расписала,как можно подробнее

Answer 2

To multiply two numbers written in scientific notation, you need to multiply their coefficients and add their exponents. Applying this to the given expression, we get:

(810^4) * (2.510^-7) = (8 * 2.5) * (10^4 * 10^-7)

= 20 * 10^-3

= 2.0 * 10^-2

Therefore, (810^4) * (2.510^-7) = 2.0 * 10^-2.