Use function notation to represent the area of a circle whose circumference is 148cm
1 answer:
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For a geometric sequence with common ratio 
, we have
that is, the
-th term in the sequence is the product of the previous term and the common ratio . So
Then the sum of the first 7 terms is
Notice that
so we can subtract this modified sum from
to get
We're told that
and 
, so the sum of the first 7 terms is
that is, the
Then the sum of the first 7 terms is
Notice that
so we can subtract this modified sum from
We're told that
The cosine ratio is adjacent leg divided by the hypotenuse.
The hypotenuse in a right triangle is the longest side and it is opposite the right angle.
An adjacent leg is the side that has an endpoint that is at the vertex of the angle and the other endpoint is at the vertex of the right angle.
cos A =
ANSWER:
The hypotenuse in a right triangle is the longest side and it is opposite the right angle.
An adjacent leg is the side that has an endpoint that is at the vertex of the angle and the other endpoint is at the vertex of the right angle.
cos A =
ANSWER: