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4 years ago

14

Which expression has a value of 15, using only four 4s and any of the following: + , – , · , ÷, exponents, and/or parentheses? A

. 44 – (4 ÷ 4) B. (4 · 4) – (4 + 4) C. (4 · 4) – (4 ÷ 4) D. (4 + 4 + 4) ÷ 4

1 answer:

Simora [160]4 years ago

5 0

Hello :
<span>C.) (4 · 4) – (4 ÷ 4) =16-1=15</span>

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Answer:

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Step-by-step explanation:

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<em>Additional comment</em>

You will find that the solutions to this are x = {14, 17}. You will also find that angle BCE will have corresponding values of 54° and -15°. That is, the solution x=17 is "extraneous." It is a solution to the equation, but not to the problem.

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3 years ago

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