How do you find a trigonometric ratio sin98° =[ ]

Calculate the missing value. round the answer to on decimal place. start with 70, increase it by 21%, and end up with

The function f(x)= -(x+5)(x+1) is down. what is the range of the function?

Answer asap! show all work! find the number of complex roots, the possible number of real roots and the possible rational roots of the polynomial function. then, solve for all roots. x^3 + 2x^2 + 3x + 6 = 0