Mathematics

8 March, 00:43

1. What is 0.000000783 written in scientific notation?

2. Solve the following and express your answer in scientific notation.

(8.23 x 109) + (9.1 x 109)

3. One blue whale weighed 4.2 x 105 pounds while another weighed 2.6 x 104. Find the difference in weight, and express your answer

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