Problem 9 Consider the function
sin (ny)
f(x, y) =
x2 + 1
a) Find the first order partial derivatives, fx(x, y) and f(x, y).
b) Find the equation of the tangent plane to this surface at (-1,5/2). Use GeoGebra to
check your answer (no need to sketch anything here).

At the beginning of year 1, carlos invests $600 at an annual compound interest rate of 4%. he makes no deposits to or withdrawals from the account. which explicit formula can be used to find the account's balance at the beginning of year 5? what is, the balance?

Meghan has created a diagram of her city with her house, school, store, and gym identified. a. how far is it from the gym to the store? b. meghan also wants to walk to get some exercise, rather than going to the gym. she decides to walk along arc ab. how far will she walk? round to 3 decimal places.

You are saving to buy a bicycle; so far you save 55.00. the bicycle costs 199.00. you earn 9.00 per hour at your job. which inequality represents the possible number of h hours you need to work to buy the bicycle?