Answer:
120 kilometers ()
Step-by-step explanation:
first find the area in meters:
400*300 = 120000
now convert from meters to kilometers
1000 meters = 1 kilometer, therefore:
120000/1000
Simplify
120 kilometers ()
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1 answer:
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Answer:
1
Step-by-step explanation:
Use the form for the factoring of the sum of cubes.
To make this easier to write, we'll use the substitutions ...
a = sin(θ), b = cos(θ)
It looks like you may want to simplify ...
(a³ +b³)/(a +b) +ab
= ((a +b)(a² -ab +b²))/(a +b) +ab
The factors of (a+b) cancel. In this case, we know that a² +b² = 1, so this becomes ...
= (1 -ab) +ab
= 1