Write a general formula to describe each variation. Use

Chapter 7, Problem 7.2.12

(choose chapter or problem)

Write a general formula to describe each variation. Use the information given to find the constant of proportionality. a. Q is directly proportional to both the cube root of t and the square of d, and Q 18 when t 8 and d 3. b. A is directly proportional to both h and the square of the radius, r, and when r 5 and h 2. c. V is directly proportional to B and h, and V 192 when B 48 and h 4. d. T is directly proportional to both the square root of p and the square of u, and T 18 when p 4 and u 6. 13. The

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