Answer:
16,876,789. 82364 ≈ 82,000
Step-by-step explanation:
Let's go through this Step by Step.

Now let's go through the Addition.

Now, we round 82364 to the nearest thousand.
The nearest thousand is 2000. so the answer to this one would be 82000.
hope this helps.
Answer:
I think it B or C but hope I can help :)
Step-by-step explanation:
344444444;3333333+5655434455432=45666788999765433
A number raised to the second power has an exponent above it. To the second power means the number multiplied by itself once.
x^2 is equal to (x)(x)
Hope this helps :)
Answer:
4.87 ft
Step-by-step explanation:
The height of the skylight =
The height of the blue △ - the height of the red △
Let <em>b</em> ft be the height of the blue △.
sin 60° = 
<em>b</em> = 25 sin 60°
Let <em>r</em> ft be the height of the red △.
tan 40° = 
<em>r</em> = 20 tan 40°
The height of the skylight
= 25 sin 60° - 20 tan 40°
= 4.87 ft (rounded to the nearest hundredth)