The value of the expression in scientific notation is 1.2913 * 10^5
The expression is given as:
(1.28 × 105) + (1. 13 × 10³)
Rewrite properly as
(1.28 × 10^5) + (1. 13 × 10^3)
Express 10^3 as 10^-2 * 10^5
So, we have
(1.28 × 10^5) + (1. 13 × 10^3) = (1.28 × 10^5) + (1. 13 × 10^-2 * 10^5)
Factor out 10^5
So, we have:
(1.28 × 10^5) + (1. 13 × 10^3) = (1.28 + 1. 13 × 10^-2) * 10^5
This gives
(1.28 × 10^5) + (1. 13 × 10^3) = (1.28 + 0.0113) * 10^5
Evaluate the sum
(1.28 × 10^5) + (1. 13 × 10^3) = 1.2913 * 10^5
Hence, the value of the expression in scientific notation is 1.2913 * 10^5
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The scientific notation of (1.28 × 105) + (1. 13 × 10³) is 1.2913 × 10⁵
Scientific notation is a form of presenting very large numbers or very small numbers in a simpler form.
The proper format for scientific notation is a × 10ᵇ
where
Therefore, let's evaluate (1.28 × 10⁵) + (1. 13 × 10³)
(1.28 × 10⁵) = 128000
(1. 13 × 10³) = 1130
Hence,
(1.28 × 10⁵) + (1. 13 × 10³) = 128000 + 1130 = 129130
In scientific notation,
(1.28 × 10⁵) + (1. 13 × 10³) = 129130 = 1.2913 × 10⁵
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