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sveticcg [70]
3 years ago
5

Six students are working to simplify the expression shown.

Mathematics
2 answers:
KatRina [158]3 years ago
7 0

Answer:

First one Equivalent but not simplified fully (Can combine the two y terms)

Second: Equivalent but not simplified fully (Can combine the two x^2 terms)

Third: Equivalent and simplified fully

Fourth: Not equivalent (y term is not correct)

Fifth: Not equivalent (x^2 term is not correct and the constant terms [ones without variables] can be combined)

Sixth: Not Equivalent (y term is not correct and the constant terms can be combined)

Step-by-step explanation:

You just need to know if two terms have the same variable they can be added or subtracted.  But if it is say x and x^2 it cannot, they need to be brought to the same power as well.  or if there is a term with xy, it can only be added and subtracted to other xy terms

kupik [55]3 years ago
4 0

Answer and Step-by-step explanation:

Since we have given that

4y-8x^2-5+14x^2+y-1

We need to classify the six expressions:

1) 4y+6x^2-6+y -  It is equivalent to the given expression but not fully simplified.

2) 5y-8x^2-6+14x^2 - equivalent to the given expression but not fully simplified.

3) 5y+6x^2-6 -  It is fully simplified.

4) 3y+6x^2+6 -  It is not equivalent to the given expression.

5) 5y-6x^2-5-1 - It is  not equivalent to the given expression.

6) 3y^2+6x^2-5-1 - It is not equivalent to the given expression.

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IceJOKER [234]

Answer:

A. x+12 = 101

      -12     -12

x=89

B. 7x-14 = 63

       +14   +14

7x=77

/7   /7

x=11

C. 2x+3 = x+ 41

    -x  -3   -x  -3

x=38

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2 years ago
A number is between 41 and 46 . it has prime factors of 2 and 11 what is the number ​
AfilCa [17]

44 because it goes into 2 and also goes into 11

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3 years ago
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4 people can dig a hole in 3 hours. How long does it take 9 people.
ad-work [718]

Answer: 1 hour 20 minutes

<u>Step-by-step explanation:</u>

Let's figure out how long it would take 1 person to dig the hole and then divide that number by 9 (since they are sharing the workload).

\dfrac{1}{4}x=3\qquad \implies \qquad x = 12\quad \text{It takes 12 hours for 1 person}\\\\\\\dfrac{12\ \text{(for 1 person)}}{9\ \text{(people)}}\quad =1\dfrac{1}{3}\quad =\large\boxed{1\ hour\ 20\ minutes}

6 0
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Read 2 more answers
-\frac{4\left(x+3\right)}{5}=4x-12
Keith_Richards [23]

Answer:

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Step-by-step explanation:

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