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Akimi4 [234]
3 years ago
13

Which of the following statements is logically equivalent to "If I study, then I get better grades"? If I do not study, then I d

o not get better grades. If I get better grades, then I study. If I do not get better grades, then I do not study. If I get better grades, then I do not study.
Mathematics
2 answers:
saul85 [17]3 years ago
3 0
It would go along with, "if I get better grades, then I study."
AleksandrR [38]3 years ago
3 0
I would think that the correct answer is the 1st one: If I do not study, then I do not get a better grade. 

I think this would be correct because it's basically the same as the sentence they give you! For a better understanding of this, go to:   <span>https://en.wikipedia.org/wiki/Logical_equivalence</span>

I hope this helps you out! 
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3 years ago
Evaluate the expression: –(31 + 2) + 72 – (–5)2.
Rudiy27

Answer:

 14

Step-by-step explanation:

Order of operations rules require that we do any work inside parentheses first.  Thus,

–(31 + 2) + 72 – (–5)^2

becomes:

     -33    + 72 -  25, or

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Important:  Please use " ^ " to denote exponentiation; (-5)2 is incorrect, whereas (-5)^2 or (-5)² is correct.

4 0
2 years ago
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Answer:

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dy/dx = (cos y + y sin x) / (cos x + x sin y)

5 0
3 years ago
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3 years ago
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3 years ago
Read 2 more answers
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