Solve the problem.f varies jointly as q2 and h, and f = 24 when q = 2 and h = 3. Find h when f = 192 and q = 4.
A. h = 2
B. h = 6
C. h = 4
D. h = 3
Answer: B
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Solve the problem.Bob owns a watch repair shop. He has found that the cost of operating his shop is given by 
where x is the number of watches repaired. How many watches must he repair to have the lowest cost?
A. 46 watches B. 79 watches C. 20 watches D. 39 watches
Find the x-intercepts.y = x2 - 7x - 8
A. (0, 8) and (0, -1) B. (-8, 0) and (1, 0) C. (8, 0) and (-1, 0) D. (8, 0) and (0, -1)
Let f be a function with the given domain and range. Find the domain and range of the indicated function.Domain of f(x): [-4, 5]; Range of f(x): [0, 3] f(x + 6) + 1
A. D: [2, 11]; R: [-1, 2] B. D: [-10, -1]; R: [-1, 2] C. D: [2, 11]; R: [1, 4] D. D: [-10, -1]; R: [1, 4]
Solve the problem.Find the doubling time for an amount invested at a growth rate 6% per year compounded continuously.
A. 7.4 years B. 4.2 years C. 10 years D. 11.6 years