Solve the problem.A drug company establishes that the most effective dose of a new drug relates to body weight as shown below. Let body weight be the independent variable and drug dosage be the dependent variable. Use a graphing utility to draw a scatter diagram and to find the line of best fit. What is the most effective dosage for a person weighing 120 lbs? 
A. 12.07 mg
B. 26.41 mg
C. 13.5 mg
D. 14.5 mg
Answer: C
You might also like to view...
Solve the problem.A construction company buys a truck for $40,000. The truck is expected to last 15 years, at which time it will be worth $4000. Write a function v(x) that describes the value of the truck at any time during its lifetime. Be sure to state the domain of the function.
A. v(x) = 40 ,000 - 2400t, with domain 0 ? t ? 15 B. v(x) = 40 ,000 - 2500t, with domain 0 ? t ? 15 C. v(x) = 40 ,000 + 2400t, with domain 0 ? t ? 15 D. v(x) = 40 ,000 - 2300t, with domain 0 ? t ? 15
Find the requested function value of ?.If cos ? = 0.2308, find tan ?.
A. 0.9730 B. 4.216 C. 0.2372 D. 1.028
Use the scatter plots shown, labelled a through f to solve the problem.
?
?
?
Which scatter plot indicates a perfect negative correlation?
A. c B. b C. a D. f
Find the vertex, focus, and directrix of the parabola. Graph the equation.(x + 2)2 = -(y - 2)
A. vertex: (2, -2)
focus: (2, -2.25)
directrix: y = -1.75
B. vertex: (2, -2)
focus: (1.75, -2)
directrix: x = 2.25
C. vertex: (-2, 2)
focus: (-2.25, 2)
directrix: x = -1.75
D. vertex: (-2, 2)
focus: (-2, 1.75)
directrix: y = 2.25