A certain insect is approximately 4 x 10^-2 inches long. A second insect is about 1.3 x 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.

Answer 1

To find the total length of the two insects, we simply add their lengths:

4 x 10^-2 + 1.3 x 10^-1

To simplify this, we need to make sure the exponents are the same. We can do this by converting 4 x 10^-2 to scientific notation with an exponent of -1:

4 x 10^-2 = 4 x 10^(-2 + 1) = 4 x 10^-1

Now, we can add the two lengths:

4 x 10^-1 + 1.3 x 10^-1 = (4 + 1.3) x 10^-1

= 5.3 x 10^-1

= 5.3 x 10^-0.5 (one decimal place)

Therefore, the total length of the two insects is approximately 5.3 x 10^-0.5 inches.

Answer 2

all of those are wrong