The area, A, of a forest, in acres, is modeled by the equation A = 5,000 · ()" where d is the number of decades since the beginning of
the year 1950.
a. Is the area of the forest increasing or decreasing with time? Explain how
you know.
b. What was the area of the forest in 1950?
c. What was the area of the forest in 1940?

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

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 5x^2 + 10x

Aculinary club earns $1360 from a dinner service. they sold 45 adult meals and 80 student meals. an adult meal costs twice as much as a student meal. what is the cost of an adult meal?