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nydimaria [60]
2 years ago
11

The expression 2(128 + 5) + V7 can be used to find the perimeter of the triangle. What does

Mathematics
1 answer:
Mama L [17]2 years ago
5 0
You do the things in the parentheses first then multiply them by 2
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Write a simplified polynomial expression in standard form to represent the area of the rectangle below.
Stells [14]

Answer:

5x^{2} -18x-8

Step-by-step explanation:

The formula for area of a rectange is lw, where l is length and w is width.  Since x-4 and 5x+2 are the sides, we can multiply them together to give us the area.  We do (x-4)(5x+2).  We use the FOIL method (First Outside Inside Last) and get 5x^2-18x-8.

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stepan [7]
Did you not learn to factor?
6 0
3 years ago
The fee for using a gym is $25 a year plus $3 for each visit. If someone visits v times a year, which expression represents the
Licemer1 [7]

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6 0
2 years ago
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SOS!!
wlad13 [49]

The only difference between the two following expressions is their exponent though it’s equal. If you would analyze carefully, the two expressions are equal since 2/4 is just equal to ½. The two expressions are equal in value so the presentation of the exponent is their only difference.

4 0
3 years ago
65 POINTS PLEASE HELP
miskamm [114]

Answer:

        1  

= -----------

   6(x + 7)

Step-by-step explanation:

3x - 21      x^2 - 49

----------- ÷ -------------

18x - 18        x - 1

3x - 21          x - 1

----------- ×  -------------

18x - 18       x^2 - 49

Factor the top left:

3x - 21  = 3(x - 7)

Factor the bottom left:

18x - 18 = 18(x - 1)

Factor the new bottom right:

x^2 - 49 = (x + 7)(x - 7)

Multiply and simplify the faction:

3(x - 7)            x - 1

----------- ×  -----------------

18(x - 1)       (x + 7)(x - 7)

        1  

= -------------

   6(x + 7)

6 0
3 years ago
Read 2 more answers
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