Please help me answer the question in the picture!
1 answer:
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Correct Answer: Option A
The next step in simplification will be to convert the squared term so that it no longer contains a square.
So, we are to simplify the term
Using the half-angle identity we can write:
Using this value, the equation becomes:
Therefore, option A is the correct answer.
The next step in simplification will be to convert the squared term so that it no longer contains a square.
So, we are to simplify the term
Using the half-angle identity we can write:
Using this value, the equation becomes:
Therefore, option A is the correct answer.
The surface area of a right circular cone is SA =<span>
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The diameter (d) is equal to 20 meters and half of it is equal to the radius which is 10 meters.
The height (h) of the tank is equal to 42 meters.
Substituting the given to the equation:
SA =
= 1670.51 square meters or the closest answer is 1,671 m2
The diameter (d) is equal to 20 meters and half of it is equal to the radius which is 10 meters.
The height (h) of the tank is equal to 42 meters.
Substituting the given to the equation:
SA =
= 1670.51 square meters or the closest answer is 1,671 m2