Which expression represents the phrase? "6 less than the sum of 9 and d." A) 6 – 9d B) 9d + 6 C) 6 – (9 + d) D) (9 + d) – 6

(9+d) - 6

Step-by-step explanation:

6 less than the sum of 9 and d

First we do the sum  since less than means it comes after

(9+d)

Then subtract 6

(9+d) - 6

the answer is b.

step-by-step explanation:

by the trigonometric ratio tangent, tangent equals opposite divided by adjacent.

therefore, tan(50) equals ac/3

multiply each side by 3 to get: ac=3tan(50)

the answer is b.