Help me ASAP
factorise; a=b-bx
10 points to whoever answers this

With math question will mark brainliest question in the pic.

What basic trigonometric identity would you use to verify that sin x cos x tan x =1-cos^(2)x?

The weights of players in a basketball league are distributed normally. the distance (d) of each player's weight (w) from the mean of 86 kilograms was computed as follows: d = |w - 86| if d is greater than 7 for approximately 5% of the players, what is the approximate standard deviation of the players' weights? a. 1.75 kilograms b. 3.5 kilograms c. 4.3 kilograms d. 7 kilograms