Let tan(2x)+tan(x)=0, where 0 ≤ x < 2pi. How many possible solutions are there for x? A. 2
B. 4
C. 6
D. 8

After being rearranged and simplified, which of the following equations could be solved using the quadratic formula? check all that apply. a. 9% + 3x2 = 14 + x-1 b. -x+ + 4x + 7 = -32-9 c. 5x + 4 = 3x4 - 2 d. 2x2 + x2 + x = 30

An angle that measures between 90 and 180° is called a(,

Calculate the density of benzene if 300ml of it weighs 263g. a. 0.88 g/ml b. 1.14 g/ml c. 78,900 g/ml d. 37 g/ml