Provide an appropriate response.In solving the inequality 5x ? -45, would you have to reverse the inequality symbol? Explain why.
What will be an ideal response?
Explanations will vary. One possible answer: No, since you don't have to divide or multiply by a negative number. The fact that the number you are dividing into is negative is irrelevant.
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Suppose that for X = net amount won or lost in a lottery game, the expected value is E(X) = ?$0.50. What is the correct interpretation of this value?
A. The most likely outcome of a single play is a net loss of 50 cents. B. A player will have a net loss of 50 cents every single time he or she plays this lottery game. C. Over a large number of plays the average outcome for plays is a net loss of 50 cents. D. A mistake must have been made because it's impossible for an expected value to be negative
Simplify the expression.-(-8)2 ÷ 8 ? (-3)
A. -192 B. 192 C. -24 D. 24
Combine like terms.5ab + 9a + 15 + 4ab
A. 18a2b + 15 B. 18a + 9b + 15 C. 18ab + 15 D. 9ab + 9a + 15
Determine which functions are one-to-one.
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(a) I only
(b) I, II
(c) I, II, III
(d) II only
(e) III only