Answer: (1,-4)
Step-by-step explanation:
A dilation is a transformation that produces an image that is the same shape as the original, but is a different size. A dilation that creates a larger image is called an enlargement. ... If the scale factor is 1, the figure and the image are congruent. The word "dilate" is often heard in relation to the human eye.
Answer

Step by Step Explanation
Given
See attachment for table
Required
Determine the sinusoidal function
The sinusoidal function is represented as:
Where
And it is calculated as:
From the table:
Highest = 77 and Least = 21
So:
B is calculated as:
The period is 12 i.e. 12 months
So:
C is calculated as:





Lastly, D is calculated as:
So:
So, the function is:

Answer:
B) 41.7
Step-by-step explanation:
Let
,
, and
. Use the Law of Cosines equation to find angle A=x which is directly across from side
:

Therefore, the correct answer is option B, which means you were right!