Question

1. when i add two numbers in scientific notation i coefficients and select ( (2.2 \times 10^2) + (8.6 \times 10^{-2}) ) select my

Explanation:

Step1: Convert to standard form

First, convert each number from scientific notation to standard form.
For \(2.2\times10^{2}\), we have \(2.2\times100 = 220\).
For \(8.6\times10^{-2}\), we have \(8.6\times\frac{1}{100}=0.086\).

Step2: Add the two numbers

Now, add the two standard form numbers: \(220 + 0.086=220.086\).

Step3: Convert back to scientific notation (optional, but to match format)

To write \(220.086\) in scientific notation, we move the decimal point 2 places to the left, getting \(2.20086\times10^{2}\). But if we just want the sum, it's \(220.086\) or in scientific notation - adjusted, but the main sum is \(220 + 0.086 = 220.086\).

Answer:

The sum of \((2.2\times10^{2})+(8.6\times10^{-2})\) is \(220.086\) (or \(2.20086\times10^{2}\) in scientific notation).