which is the best estimate for (6.3x10-2) (9.9x10-3) written in scientific natation
If you just want an estimate then about 60*10^-5 = 6 * 10^-4
What's the estimate for 6.3
To multiply numbers in scientific notation, you would multiply the coefficients and add the exponents.
Let's calculate:
(6.3 x 10^(-2)) x (9.9 x 10^(-3))
Step 1: Multiply the coefficients: 6.3 x 9.9 = 62.37
Step 2: Add the exponents: (-2) + (-3) = -5
Therefore, the answer in scientific notation is 6.237 x 10^(-5).
To find the product of two numbers written in scientific notation, you need to multiply their coefficients and add their exponents. Let's calculate it step by step:
Step 1: Multiply the coefficients:
6.3 x 9.9 = 62.37
Step 2: Add the exponents:
10^-2 x 10^-3 = 10^(-2-3) = 10^-5
Combining these results, we have:
62.37 x 10^-5
Now, we need to write this result in scientific notation. In scientific notation, we express a number as the product of a coefficient between 1 and 10 and a power of 10. In this case, the coefficient is 6.237 (62.37 divided by 10) and the exponent is -5. Therefore, the best estimate for (6.3x10^-2) (9.9x10^-3) written in scientific notation is:
6.237 x 10^-5