Solve for the roots in the following equation. hint: factor both quadratic expressions. (x 4 + 5x 2 - 36)(2x 2 + 9x - 5) = 0 x = a0 a1, ± a2, - a3, ± a4 i

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

What is the solution for 6 - 7/8? explain the steps.

When you flip a biased coin the probability of getting a tail is 0.6. how many times would you expect to get tails if you flip the coin 320 times?