LukeJV8757

22.12.2020 • 

Mathematics

14. Justify Reasoning An online retailer sells two packages of protein bars. Package 10-pack of 2.1 ounce bars 12-pack of 1.4 ounce bars Cost ($) 15.37 15.35 a. Which package has the better price per bar?

b. Which package has the better price per ounce?

c. Which package do you think is a better buy? Justify your reasoning.

Ответ:

mikk33

19.05.2022

Mathematics

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(-x+9)(-x-9) - prefect square
(xy + x)(xy + x) - perfect square
(2x-3)(-3+2x) - not a perfect square
(16- x²)(x2 – 16) - not a perfect square
(4y? +25)(25+4y?) - not a perfect square

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