Question

The amounts of e-waste generated in a region during two years were 14,200,000 tons and 10,700,000 tons. What was the total e-waste generated over these two years in the region, expressed in scientific notation?

2.49 ⋅ 107 tons
2.49 ⋅ 1014 tons
24.9 ⋅ 107 tons
24.9 ⋅ 1014 tons

Answer 1

14,200,000
10,700,000
----------------
24,900,000
= 2.49x10^7

or,

1.42x10^7 + 1.07x10^7 = 2.49x10^7

Answer 2

whats the answer can you explain

Answer 3

I think you'd do well to review your scientific notation. Any explanation I give here will just be a duplication of what you have already (I hope) read.

Answer 4

9 ⋅ 1019
9 ⋅ 1019
9 ⋅ 1019
9 ⋅ 1019
9 ⋅ 1019
9 ⋅ 1019
9 ⋅ 1019
9 ⋅ 1019
9 ⋅ 1019
9 ⋅ 1019
9 ⋅ 1019
9 ⋅ 1019
9 ⋅ 1019
9 ⋅ 1019
9 ⋅ 1019