Select the functions that have a value of -1. sin270° cos270° tan270° csc270° sec270° cot270°

Medium sodas cost $1.25 and hot dogs cost $2.50. natalie’s group brought in pizzas but is buying the drinks at concession stand. how many medium sodas can natalie’s group buy with $20? make a table to show answer.

Find the sum of 4x^{2} -4+6 and -7^{2} +3x+1

How can i differentiate this equation?