9. Last year a peanut farmer produced 6 x 10^4 kg of peanuts. If the average weight of the peanuts was
8 x 10^-4 kg, how many peanuts did the farm produce?
Give your answer in scientific notation.

answer: .64

step-by-step explanation

set up the formula for standard deviation for this set of numbers, then simplify

the answer is:

the correct option:

b.

to solve the problem, we need to remember how to operate to simplify exponential expressions using the logarithms.

we are given the equation:

then, using placing logarith with base 7 on both sides of the equation, we have:

so, rounding the obtained result to two decimal places (nearest hundreth), we have:

hence, we have that the correct option:

b.

have a nice day!