Problems 9 and 10 concem the following situation. Vera's gross weekly pay is $976.42. From each
(weekly) paycheck $135.32 is deducted for federal
tax, $50.27 for state tax, 6.5% for Social Security,
and 1.5% for Medicare. Also, her weekly living
expenses are $465.27.
9) What is Vera's weekly disposable income?
A) $281.09
B) $270.18
C) $269.27
D) $258.36
E) $247.45

To find the extreme values of a function f(x.y) on a curve x-x(t), y y(t), treat f as a function of the single variable t and use the chain rule to find where df/dt is zero. in any other single-variable case, the extreme values of f are then found among the values at the critical points (points where df/dt is zero or fails to exist), and endpoints of the parameter domain. find the absolute maximum and minimum values of the following function on the given curves. use the parametric equations x=2cos t, y 2 sin t functions: curves: i) the semicircle x4,y20 i) the quarter circle x2+y-4, x20, y20 b, g(x,y)=xy

The table represents a function f(x). what is f(3)? a.-9 b.-1 c.1 d.9

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?