Mathematics, 27.04.2021 18:30 djs1002
Um motor elétrico recebe 2.800 kJ de energia elétrica. Transforma 900 kJ em energia térmica, 150.000 J em energia sonora e o restante em energia cinética. Podemos afirmar que seu rendimento é de: *
a) 62,5 %
b) 68,7 %
c) 70,4 %
d) 72,7 %
e) 92,3 %
Answers: 3
Mathematics, 21.06.2019 14:00
Ms. sutton recorded the word counts and scores of the top ten essays in a timed writing contest. the table shows her data. how does the word count of an essay relate to its score in the contest? word count tends to decrease as the score decreases. word count tends to increase as the score decreases. word count tends to remain constant as the score decreases. word count has no apparent relationship to the score of the essay.
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Mathematics, 21.06.2019 21:00
God's gym charges a sign-up fee of $100 plus $30 per month. write an expression to represent how much someone would pay for a membership.
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Mathematics, 22.06.2019 04:00
The associative, commutative, and distributive properties can be used on rational equations. true or false
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