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Artemon [7]
3 years ago
15

Simplify . 7(8-1)+(-1) ^)2/1+2^2

Mathematics
1 answer:
kodGreya [7K]3 years ago
5 0

Answer:

\frac{50}{5}  = 10

Step-by-step explanation:

\frac{7(8 - 1) + ( - 1 {)}^{2} }{1 +  {2}^{2} }

\frac{7 \times 7 + ( - 1 {)}^{2} }{1 +  {2}^{2} }  =  \frac{7 \times 7 + 1}{1 +  {2}^{2} }

\frac{7 \times 7 + 1}{1 + 4}  =  \frac{49 + 1}{1 + 4}  =  \frac{49 + 1}{5}

=  \frac{50}{5}  = 10

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Two consecutive even whole numbers have a product of 360. What is the smaller of the<br> two number?
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Answer:

let one even number be N

and another even number be N(N+2)

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but -20 not accepted

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Step-by-step explanation:

3 0
3 years ago
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Here are five number cards . 2,5,7,8,9 . One of the cards is removed and the mean average of the remaining four number cards is
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Answer:

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Step-by-step explanation:

Given that there are 5 number cards.

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i and ii represent the sum of remaining 4 cards. Hence they should be equal

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Subtract 31 from both sides to get

-x=-7

Or x =7


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4 years ago
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