Albert0898
  • Albert0898
Need help with understanding these problems and the right approach. Question 1. If (p)(q^3)(t^4) > 0, which of the following products must be positive? (F) pq (G) pt (H) qt (J) pqt (K) (p)(q^2) Question 2. For real numbers x and y, when is the equation |2x + 3y| = |2x - 3y| true? A) Never B) Always C) Only when 2x = 3y D) Only when x = 0 and y = 0 E) Only when x = 0 or y = 0 Question 3. For all real numbers x and y such that the product of y and 4 is x, which of the following expressions represents the sum of y and 4 in terms of x? A) x + 4 B) 4x + 4 C) 4(x+4) D) (x+4)/4 E) (x+16)/4
Mathematics
schrodinger
  • schrodinger
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triciaal
  • triciaal
question 1 one approach consider the situation when the values are positive and when negative t^4 will always be positive t can be positive or negative when q is negative q^3 is negative p can be positive or negative
triciaal
  • triciaal
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