Question

A single tree produces about 2.6 × 102 lb of oxygen each year. The Amazon rainforest has about 3.9 × 1011 trees.

About how many pounds of oxygen are produced in the rainforest each day ?

2.8 × 10 lb

Answer 1

the answer is an exponent

Answer 2

So to multiply standard form we multiply the 2 numbers and the 2 indices separately.

2.6*3.9=10.14
x^2 * x^11 = x^13

So we've got 10.14*10^13
However Standard form must be
1≤x≤10
therefore we need to divide that by 10 but to get the same number we add one onto the power of 10.

So the answer is:


1.014*10^14 lbs of oxygen are produced in the rainforest each year.

Answer 3

but for the answer I just need to answer in an exponent