Which equation can be used to solve for b? triangle a b c is shown. angle b c a is a right angle and angle c a b is 30 degrees. the length of side b c is 5 centimeters, the length of b a is 10 centimeters, and the length of c a is b. tan(30o) = startfraction 5 over b endfraction tan(30o) = startfraction b over 5 endfraction tan(30o) = startfraction 10 over b endfraction tan(30o) =

14

step-by-step explanation:

step-by-step explanation:

the true ones are a b and d

hello! just here for points! though i wish i knew!

the revenue of the fitness center, y, is the product of two factors: the number of members and the fee paid by each member. there are 320 members now, but number of members goes down by 10 for each $5 increase in fees, so if x is the number of $5 price increases then members is equal to (320 - 10x). since the fee is currently $45, and the fee increases by $5 for every price bump x, the fee is given by (45 + 5x). so, revenue y is given by y = (320 - 10x)(45 + 5x).