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 ?
+23247 I'm assuming that 2.6 x 102 lb of oxygen each year means 2.6 x 10^2.
Also, I'm assuming that 3.9 x 1011 trees means 3.9 x 10^11.
Multiply the two values: (2.6 x 10^2) x (3.9 x 10^11)
= (2.6 x 3.9) x (10^2 x 10^11) Multiply the numbers; add the exponents.
= 10.14 x 10^13
= 1.0 x 10^14 Round to one decimal.
+23247 I'm assuming that 2.6 x 102 lb of oxygen each year means 2.6 x 10^2.
Also, I'm assuming that 3.9 x 1011 trees means 3.9 x 10^11.
Multiply the two values: (2.6 x 10^2) x (3.9 x 10^11)
= (2.6 x 3.9) x (10^2 x 10^11) Multiply the numbers; add the exponents.
= 10.14 x 10^13
= 1.0 x 10^14 Round to one decimal.
