Use a graphing calculator to plot the data and find the quadratic function of best fit.The following table shows the median number of hours of leisure time that Americans had each week in various years.
Use x = 0 to represent the year 1973. Using a graphing utility, determine the quadratic regression equation for the data given. What year corresponds to the time when Americans had the least time to spend on leisure?
What will be an ideal response?
M(x) = 0.04x2 - 1.21x + 26.03; 1988
Mathematics
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Test the vector field F to determine if it is conservative.F = 
i + zex+yj + ex+yk
A. Not conservative B. Conservative
Mathematics
Find the domain of the function.f(x) = 
A. {x|x ? 5, 6} B. {x|x ? 4, -4} C. {x|x ? -5, -6} D. {x|x ? 0}
Mathematics
Verify the identity.cos 
= -sin x
What will be an ideal response?
Mathematics
Follow the order of operations to simplify the expression.
2
A. 
B. 
C. 
D. 
Mathematics