Given f(x) = -7x^4 + 9x^2 – X – 10 determine the following characteristics:
Total number of solutions, possible # of real solutions, possible # of imaginary solutions

Find the value of the cosine for angle a

Aschool allots ? 1500 to spend on a trip to the theatre. theatre tickets have a regular cost of ? 55 each and are on offer for 1 5 off. a train ticket for the day will cost ? 12 each. if 2 teachers and the maximum number of students attend, how much money will the school have left over?

What is y times x by? y is __ times x