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Rus_ich [418]
3 years ago
13

What is the simplified form of this expression? 7a2 + 10a − 3a − 2a2

Mathematics
2 answers:
nikklg [1K]3 years ago
6 0

Answer:

What is the simplified form of this expression?

7a2 + 10a − 3a − 2a2

Step-by-step explanation:

7a2 + 10a − 3a − 2a2

Combine like terms

742 + 10a - 3a - 2a2

742 + 7a - 2a2

solution=

5a2 + 7a

oee [108]3 years ago
4 0
5a2+7a
explanation
just add like terms
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The room numbers of two adjacent classrooms are two consecutive even numbers if their sum is 806 find the classroom numbers
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Answer:

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Step-by-step explanation:

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3 years ago
Separate the x- and y-values with a comma.<br> X=-3+y<br> 26x - 5y = 6
labwork [276]

Answer:

The solution of the given system is (x,y) = (1,4)

Step-by-step explanation:

Here, the given system of equation is:

x  = -3 + y

26 x - 5 y =  6

Now, substitute x  = -3 + y in the second equation , we get

26 x - 5 y =  6  ⇒   26 (-3 + y) - 5 y =  6

or, 26(-3)  + 26(y)  - 5y = 6

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⇒  y = 84 / 21 = 4   or ,   y =  4

So x  = -3 + y  =  -3 + 4 = 1

Hence, the solution of the given system is (x,y) = (1,4)

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3 years ago
Marylee paid $40 for an item after she received a 20% discount. Marylee's friend says this means that the original price of the
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3 years ago
1. h(2) + g(2) *<br> h(t) = 3-5<br> g(t) = 2t - 5
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Answer:

h(2)+g(2) = -3

Step-by-step explanation:

h(2) +g(2)\\ \\h(t) = 3-5, g(t) = 2t -5

        Replace the variable  (t)  with (

2)  in the expression.

h (2) = 3 - 5

        Replace the variable  (t)  with (

2)  in the expression.

g(2) = 2(2) -5

        Replace the function designators in h(2) +g(2) with the actual functions.

h(t) = 3 - 5 +2 (2) ← plug h(2) into 2(t)

         Remove parentheses.

3 - 5 + 2(2)

         Multiply 2 by 2

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         Subtract  5  from  3

.

-2 + 4 - 5

          Add -2 and 4

2 - 5

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-3

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4 years ago
Which option shows the graph of 3y+18&gt;5x
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