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

@strawberryswing

Answer 2

im thinking 14

Answer 3

\[2.8 × 10^{14}\]

Answer 4

1 sec......

Answer 5

kk

Answer 6

wait is it 10^11

Answer 7

hold on

Answer 8

2.8 × 10^14 lb right

Answer 9

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 \[1\le x \le 10\] 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 10

oh okay thx @ryanvarghese12790