Suppose cos(x)=-1/3, where pi/2≤x≤ pi. What is the value of tan(2x)?-2sqrt8/7-sqrt8sqrt82sqrt8/ 7

The u-drive rent-a-truck company plans to spend $13 million on 320 new vehicles. each commercial van will cost $25 comma 000, each small truck $50 comma 000, and each large truck  $80 comma 000. past experience shows that they need twice as many vans as small trucks. how many of each type of vehicle can they buy?

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)

The measurement of one angle of a right triangle is 42° what is the measurement of the third angle? (there is no picture)