evaluate and write the answer in scientific notation (4x10^5):(2.5x10^8)
Online "*" is used to indicated multiplication, because "x" is often confused with an unknown. "/" is used to indicate division rather than ":".
1.6 * 10^-3
To evaluate the expression (4x10^5) : (2.5x10^8) and write the answer in scientific notation, we need to divide the numbers and separately calculate the power of 10.
Step 1: Divide the coefficients: 4 ÷ 2.5 = 1.6.
Step 2: Subtract the exponents of 10: 10^5 ÷ 10^8 = 10^(5-8) = 10^-3.
Step 3: Combine the coefficient and the exponent of 10: 1.6 x 10^-3.
Therefore, the answer evaluated and written in scientific notation is 1.6x10^-3.