This can vary, some shapes have different area formulas, here are some basic formulas I can give you:
Circle: A =


Triangle: A =

Square: A =

Rectangle: A = L*W
What language is that seriously
The function given to us is : 
We want to see which function represents the horizontal compression of f(x) by a factor of 4
We can compress a function horizontally by multiplying the x by a constant number, in this case multiplying x by 4
So horizontal compression of 
This matches with the option B = 
Hence, your answer (B) is correct.
Answer:
742908
Step-by-step explanation:
because you move the decimal point 5 times to he right
That is highest to lowest value of y
we know the range of y=cos x is -1 to 1
so
we multiply it by 3
-3 to 3 is the range