Questions from College Mathematics

Q: Find the indicated function or value if C(x, y

Find the indicated function or value if C(x, y) = 3x2 + 10xy - 8y2 + 4x - 15y - 120. Cyy(3, -2)

Q: S(T, r) = 50(T – 40

S(T, r) = 50(T – 40)(5 – r) gives an ice cream shop’s daily sale as a function of temperature T (in °F) and rain r (in inches). Find the indicated quantity (include the appropriate units) and explain...

Q: S(T, r) = 50(T – 40

S(T, r) = 50(T – 40)(5 – r) gives an ice cream shop’s daily sale as a function of temperature T (in °F) and rain r (in inches). Find the indicated quantity (include the appropriate units) and explain...

Q: S(T, r) = 50(T – 40

S(T, r) = 50(T – 40)(5 – r) gives an ice cream shop’s daily sale as a function of temperature T (in °F) and rain r (in inches). Find the indicated quantity (include the appropriate units) and explain...

Q: (A) Find an example of a function ((x,

(A) Find an example of a function ((x, y) such that ∂(/∂x = 3 and ∂(/∂y = 2. (B) How many such functions are there? Explain.

Q: Find (xx(x, y),(xy (x,

Find (xx(x, y),(xy (x, y), (yx(x, y), and (yy(x, y) for each function (.

Q: Find each indefinite integral. Check by differentiating. /

Find each indefinite integral. Check by differentiating.

Q: Find (xx(x, y),(xy (x,

Find (xx(x, y),(xy (x, y), (yx(x, y), and (yy(x, y) for each function (.

Q: Find (xx(x, y),(xy (x,

Find (xx(x, y),(xy (x, y), (yx(x, y), and (yy(x, y) for each function (.

Q: For C(x, y) = 2x2 + 2xy +

For C(x, y) = 2x2 + 2xy + 3y2 - 16x - 18y + 54 find all values of x and y such that Cx(x, y) = 0 and Cy(x, y) = 0 simultaneously.