Cynthia said that when you multiply three negative numbers the answer will be positive. Use these numbers to answer the questions: - 8.5, - 9, - 1.7, - 6.5, 3 (a) Is Cynthia's statement always true, sometimes true, or always false? Write two equations to support your answer. (b) Pretend that you need to explain to a friend what happens when you multiply three negative numbers. (c) Cynthia changed her statement to say that when you multiply two negative numbers and a positive number the answer will be positive. Is Cynthia's new statement always true, sometimes true, or always false? Write two equations to support your answer.

Question

Talia Haas

Mathematics

7 June, 05:40

Cynthia said that when you multiply three negative numbers the answer will be positive. Use these numbers to answer the questions: - 8.5, - 9, - 1.7, - 6.5, 3 (a) Is Cynthia's statement always true, sometimes true, or always false? Write two equations to support your answer. (b) Pretend that you need to explain to a friend what happens when you multiply three negative numbers. (c) Cynthia changed her statement to say that when you multiply two negative numbers and a positive number the answer will be positive. Is Cynthia's new statement always true, sometimes true, or always false? Write two equations to support your answer.

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Answers (1)

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Reuben · Answer 1

A) Never

B) - 9 x - 1.7 x - 8.5 = - 130.05

-6.5 x - 9 x - 1.7 = - 99.45

C) When you multiply 2 negative numbers the answer will always be a positive. So when you multiply that number by the third number it will end up being a positive x a negative which will always be a negative.

D) Always true

-1 x - 1 x 4 = 4

-5 x - 2 x 3 = 30