Solve the following problems express your answers in scientific notation

Asked by admin @ in Chemistry viewed by 371 People

4. Express the answers to the following problems in scientific notation. Hint: Use the subtraction example to solve the addition problem. A. (1.8 X 1020) X (2.5 X 10^16) C. (9.2 X 10^19) ÷ (3.0 X 10^7) B.(7.9 X 10^9) - (6.0 X 10^8) D. (4.2 X 10^9) + (8.0 X 10^18)​

Answered by admin @


Answer:

see below

Explanation:

A. (1.8 X 10^20) X (2.5 X 10^16)

= 4.5 x 10³⁶

B.(7.9 X 10^9) - (6.0 X 10^8)

= 7.3 x 10⁹

C. (9.2 X 10^19) ÷ (3.0 X 10^7)

= 3.067 x 10¹²

D. (4.2 X 10^9) + (8.0 X 10^18)​

= 8.00000002042 x 10¹⁸


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