Sin(a)=opposite/hypotenuse
∴hypotenuse=√20²+21²
=√400+441
=√841
=29
∴sin(a)=20/29
=0.6897
cos(a)=adjascent/hypotenuse
=21/29
=0.7241
Answer:
Bilingualism is the ability to speak at least two languages.
Explanation:
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Answer:
As new seafloor moves away from an ocean ridge, the seafloor cools and becomes less dense than the material beneath it.
Explanation:
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