Solve each of the trigonometric equations and obtain the value of the unknown. a) 2 cos x-1= 0

b) cos(2+1)=0

c) sen2x = senx + 3

d) 3csc x = 3sen x

e) csc2 x = 1 + cot2 x

The surface area (sa) of a cube with a as the length of each of its sides is given by the formula . if the surface area is known, how can you rewrite the formula to find its side?

At a kentucky friend chicken, a survey showed 2/3 of all people preferred skinless chicken over the regular chicken. if 2,400 people responded to the survey, how many people preferred regular chicken?

If 1.4% of the mass of a human body is calcium, how many kilograms of calcium are there in a 165-pound man? 1.0 kg ca 5.1 kg ca 1.0 x 102 kg ca 5.1 x 102 kg ca