Bronze is an alloy, or mixture, of copper and tin. The alloy initially contains 2 kg copper and 8 kg tin. You add x kg of copper to this 10 kg of a The concentration of copper in the alloy is a function of x: f(x) = Concentration of copper (a) Find a formula for f(x) The statements below correspond to questions (b) - (f): = (b) Evaluate f(0.7) = Which statement best explains the significance of this expression? A The concentration of the alloy after removing 0.7 kg of copper. B The amount of copper needed to be added/removed in order to have an alloy with a copper concentration of 70%. C The concentration of the alloy after removing 1.5 kg of copper. D The total amount of copper which can be removed in order for the alloy to become pure tin. E The total amount of the alloy you have if its concentration of copper is 70%. F The initial concentration of the alloy. G The concentration of the alloy after adding 0.7 kg of copper. H There is no such feature on the graph, so this has no physical meaning. (c) Evaluate f(0) = Which statement best explains the significance of this expression? (d) Evaluate f(-1.5) Which statement best explains the significance of this expression? - = (e) Evaluate f-¹(0.7) = Which statement best explains the significance of this expression? Total amount ofcopper Total amount of alloy (enter a letter of the statement A-H) (enter a letter of the statement A-H) (enter a letter of the statement A-H) (enter a letter of the statement A-H)
Bronze is an alloy, or mixture, of copper and tin. The alloy initially contains 2 kg copper and 8 kg tin. You add x kg of copper to this 10 kg of a The concentration of copper in the alloy is a function of x: f(x) = Concentration of copper (a) Find a formula for f(x) The statements below correspond to questions (b) - (f): = (b) Evaluate f(0.7) = Which statement best explains the significance of this expression? A The concentration of the alloy after removing 0.7 kg of copper. B The amount of copper needed to be added/removed in order to have an alloy with a copper concentration of 70%. C The concentration of the alloy after removing 1.5 kg of copper. D The total amount of copper which can be removed in order for the alloy to become pure tin. E The total amount of the alloy you have if its concentration of copper is 70%. F The initial concentration of the alloy. G The concentration of the alloy after adding 0.7 kg of copper. H There is no such feature on the graph, so this has no physical meaning. (c) Evaluate f(0) = Which statement best explains the significance of this expression? (d) Evaluate f(-1.5) Which statement best explains the significance of this expression? - = (e) Evaluate f-¹(0.7) = Which statement best explains the significance of this expression? Total amount ofcopper Total amount of alloy (enter a letter of the statement A-H) (enter a letter of the statement A-H) (enter a letter of the statement A-H) (enter a letter of the statement A-H)
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter9: Quadratic Functions And Equations
Section9.9: Combining Functions
Problem 2AGP
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Transcribed Image Text:Bronze is an alloy, or mixture, of copper and tin. The alloy initially contains 2 kg copper and 8 kg tin. You add x kg of copper to this 10 kg of alloy.
The concentration of copper in the alloy is a function of x:
f(x) = Concentration of copper
(a) Find a formula for f(x)
The statements below correspond to questions (b) - (f):
A The concentration of the alloy after removing 0.7 kg of copper.
B The amount of copper needed to be added/removed in order to have an alloy with a copper concentration of 70%.
C The concentration of the alloy after removing 1.5 kg of copper.
D The total amount of copper which can be removed in order for the alloy to become pure tin.
E The total amount of the alloy you have if its concentration of copper is 70%.
F The initial concentration of the alloy.
G The concentration of the alloy after adding 0.7 kg of copper.
H There is no such feature on the graph, so this has no physical meaning.
(b) Evaluate f(0.7) =
Which statement best explains the significance of this expression?
(c) Evaluate f(0)
Which statement best explains the significance of this expression?
(d) Evaluate f(-1.5) =
Which statement best explains the significance of this expression?
Total amount ofcopper
Total amount of alloy
(e) Evaluate ƒ-¹(0.7) =
Which statement best explains the significance of this expression?
(f) Evaluate f-¹(0) =
Which statement best explains the significance of this expression?
(enter a letter of the statement A-H)
(enter a letter of the statement A-H)
(enter a letter of the statement A-H)
(enter a letter of the statement A-H)
(enter a letter of the statement A-H)
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