Solve the problem.The data below represent the average monthly cost of natural gas in an Oregon home. 
Above is the graph of 47.35 sin x. Make a scatter diagram of the data. Find the sinusoidal function of the form 
which fits the data.
What will be an ideal response?
y = 47.35 sin 
+ 66.25
Mathematics
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Solve the given equation for x.y = 7 cos-1 
A. x = 4 cos 7y
B. x = 4 sin 7y
C. x = 7 cos 
D. x = 4 cos 
Mathematics
Find the exact area of the circle.
A. 6498? square ft B. 114? square ft C. 228? square ft D. 3249? square ft
Mathematics
Solve the formula for the specified variable.S = 2?rh + 2?r2 for h
A. h = 2?(S - r)
B. h = 
C. h = 
- 1
D. h = hS - r
Mathematics
Sketch the graph of the equation.y = 
x2
A. 
B. 
C. 
D. 
Mathematics