Evaluate (n^1)(n^-1) for n 1, 2, and 3. Then make a conjecture about what (n^1)(n^-1) is for any value of n. Explain your reasoning.

The parabola y = x² - 4 opens: a.) up b.) down c.) right d.) left

Find the constant of variation for the relation and use it to write an equation for the statement. then solve the equation.

Expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away. thirty minutes later, express commuter train #7 leaves north side and travels at a average speed of 35miles per hour towards downtown sation. at the moment the two trains pass each other, how far(in miles) is train #12 from the downtown sation and how long(in minutes) has the #12 train been traveling