If root 3 tan a = sin a find the value of sin a

What is the standard form of -5x^2+2x^4-11+x^3+3x

Is a triangle with sides of length 6ft, 21 ft, 23 ft. a right triangle?

Acertain drug is made from only two ingredients: compound a and compound b. there are 3 millimeters of compound a used for every 4 millimeters of compound b. if a chemist wants to make 693 milliliters of the drug, how many milliliters of compound a are needed?