a. Write the scientific notation b. Write the result in ordinary decimal notation.
can you do this one so i know how to do the others
(2.9 x 10^3)(3.0 x 10^-3)
Online "*" is used to indicate multiplication, because "x" is often confused with an unknown.
2.9 * 3 = 8.7
When multiplying exponents, you add the value of the exponents.
10^3 * 10^-3 = 10^0 = 1
Answer = 8.7 or 8.7 *10^0
To multiply numbers in scientific notation, you need to multiply the coefficients (numbers before the power of 10) and add the exponents.
1. Multiply the coefficients: (2.9 x 3.0) = 8.7
2. Add the exponents: 10^3 * 10^-3 = 10^(3-3) = 10^0 = 1
Therefore, the result in scientific notation is 8.7 x 10^0.
To write this result in ordinary decimal notation, you need to move the decimal point in the coefficient according to the power of 10.
Since 10^0 equals 1, the decimal point in 8.7 must be moved zero places, which means the result in ordinary decimal notation is simply 8.7.