Simplify: 6x3y2 (4x4 − 3xy)

a .24x7y2 − 18x4y3
b.24x12y2 − 18x4y3
c. 10x7y2 − 9x4y3
d. 24x7y2 − 18x3y3
i think it's b but i am not really sure .

If the value of cos330°is√3/2 then find cos 165°.

Aci is desired for the true average stray-load loss μ (watts) for a certain type of induction motor when the line current is held at 10 amps for a speed of 1500 rpm. assume that stray-load loss is normally distributed with σ = 2.3. (round your answers to two decimal places.)

Analyze the diagram below and complete the instructions that follow. 56 find the unknown side length, x write your answer in simplest radical form. a 2047 b. 60 c. sv109 d. 65 save and exit next s and return