Find all relative extrema. use the second derivative test where applicable. (if an answer does not exist, enter dne.)
f (x) = x2 + 9x − 4 relative minimum
(x, y) =
relative maximum (x, y) =

me

Which expression is equivalent to 8(k + m) − 15(2k + 5m)?

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.

The first floor of marcus’ house is 1,440 square feet. he will cover 1,033 square feet with wood and the rest with tile. a box of tiles will cover 11 square feet. how many boxes of tile does marcus need to buy to cover the floor?