Based on Pythagorean identities, which equation is true?
sin^2 theta-1=cos^2theta
sec^2theta-tan^2theta=-1
-cos^2theta-1=sin^2theta
cot^2theta-csc^2theta=-1

Achemist has 200 ml of a 10% sucrose solution. she adds x ml of a 40% sucrose solution. the percent concentration, y, of the final mixture is given by the rational function: the chemist needs the concentration of the final mixture to be 30%. how many milliliters of the 40% solution should she add to the 10% solution to get this concentration?

Factor the trinomial below. 12x^2 - 32x - 12 a. 4(3x+3)(x-1) b. 4(3x+1)(x-3) c. 4(3x+6)(x-2) d. 4(3x+2)(x-6)

Asequence is a function whose is the set of natural numbers