Given that the variables x and y have been defined, write an expression that evaluates to true if x is non-negative and y is negative.

Which function is odd check all that apply a. y=sin x b. y=csc x c. y=cot x d. y=sec x

Evaluate cos2θ for cosθ = square root of 3/2

Joel wants to buy a new tablet computer fram a store having a 20% off sale on all tablets. the tablet he wants has an original cost of $190. he also wants to make sure he has enough money to pay the 5% sales tax. part one joel uses the incorect expression 0.95(190)(0.8) to calculate that the tablet will cost him a total of $144.40. describe his error and write the correct expression part two how much will joel pay for the tablet show your work if you answer this question correctly you will receive a prize of 99 points good luck