Question

how do you write 7.7 × 10^{-3} in standard form?

Explanation:

Step1: Recall exponent rule

When we have a number in scientific - notation \(a\times10^{n}\), if \(n\lt0\), we move the decimal point \(|n|\) places to the left. Here \(a = 7.7\) and \(n=-3\).

Step2: Move the decimal point

Starting with 7.7, since \(n = - 3\), we move the decimal point 3 places to the left. We add zeros as place - holders. So \(7.7\times10^{-3}=0.0077\).

Answer:

0.0077