here is a tunnel for a toy train the diagram below shows the cross section of the tunnel ad is a semicircular arc of radius 10cm bc is a semicircular arc wof redius 8cm the length of the tunnel is 30cm work out the total surface area of all six faces of the tunnel give your answer in terms of pi

cheater

step-by-step explanation:

i need more details sorry

step-by-step explanation:

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).

8(1/6)

step-by-step explain:

49/6= 48

8 (1/6)