Find the volume of the indicated region.the solid cut from the first octant by the surface 
A.
B.
C.
D.
Answer: C
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Solve the problem.A rectangular field is to be enclosed on four sides with a fence. Fencing costs $7 per foot for two opposite sides, and $8 per foot for the other two sides. Find the dimensions of the field of area 620 ft2 that would be the cheapest to enclose.
A. 28.5 ft @ $7 by 21.8 ft @ $8 B. 23.3 ft @ $7 by 26.6 ft @ $8 C. 21.8 ft @ $7 by 28.5 ft @ $8 D. 26.6 ft @ $7 by 23.3 ft @ $8
Two formulas that approximate the dosage of a drug prescribed for children are: Young's Rule: C = and Cowling's Rule: C =
.In each formula, A = the child's age in years, D = an adult dosage, and C = the proper child's dosage. The formulas apply for ages 2 through 13. Use these formulas to solve the problem.Use Cowling's Rule to find the difference in a child's dosage for a 10-year-old child and a 6-year old child. Express the answer as a single rational (or fractional) expression in terms of D.
A. D
B. D
C. D
D. 4D
Solve the problem.The polynomial function represents the yearly income (or loss) from a real estate investment, where t is time in years. After how many years does income begin to decline?
A. 6 yr B. 9.33 yr C. 7 yr D. 14 yr
Determine the function which corresponds to the given graph.The indicated point is (1, 3).
A. y = ln x - 3 B. y = ln(x + 3) C. y = ln x + 3 D. y = ln(x - 3)