A certain insect is approximately 4×10^−2 inches long. A second insect is about 1.3×10^−1 inches long. What is the total length of the two insects in inches? Use scientific notation to express your answer to 1 decimal place.(1 point)
To find the total length of the two insects, we add their lengths.
4×10^−2 + 1.3×10^−1 = 0.04 + 0.13 = 0.17
The total length of the two insects is 0.17 inches, which can be expressed in scientific notation as 1.7×10^−1 inches.
6.3 x 10^3 + 2.41 x 10^4, use scientific notation to express your answer
To find the sum of these two numbers in scientific notation, we add the coefficients and keep the same exponent.
6.3 x 10^3 + 2.41 x 10^4 = 6.3 + 24.1 = 30.4
Therefore, the sum of these two numbers is 30.4 x 10^3 or, in scientific notation, 3.04 x 10^4.
You sure?
Apologies for the mistake. Let's correct it.
To find the sum of these two numbers in scientific notation, we need to rewrite them with the same exponent.
6.3 x 10^3 can be rewritten as 0.63 x 10^4 (since 6.3 = 0.63 x 10).
Now we can add the coefficients:
0.63 x 10^4 + 2.41 x 10^4 = 3.04 x 10^4
Therefore, the sum of these two numbers is 3.04 x 10^4.