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kondor19780726 [428]
3 years ago
11

1. 2 + 5 = 5 + 2 exexmolifies which property?

Mathematics
1 answer:
Sindrei [870]3 years ago
8 0
Sorry don't remember the identities but
8. 32a + 29b
9. 35x +5y
10. 24r
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Solve this by substitution
frozen [14]

Answer:

y= 1 and x=-2

Step-by-step explanation:

Since they both equal y, you can equal them to each other:

x + 3 = 2x + 5

Then solve:

x - x + 3 = 2x - x + 5

3 - 5 = x + 5 - 5

-2 = x

Substitute x in either equation to solve for y:

y = (-2) +3

y = 1

Or the other equation:

y = 2(-2) + 5

y = -4 + 5

y = 1

hope this helps :)

6 0
2 years ago
What did you guys get for all of these?<br> I’ll give you 30 points If you’re able to answer all.
alex41 [277]

Answer:

can u zoom in and take picture

Step-by-step explanation:

8 0
3 years ago
The area of a circle is 78.5 cm² . Find the lenght of the radius of a circle . Use π = 3.14
Tpy6a [65]

Answer:

5cm  = r

Step-by-step explanation:

The area of a circle is given by

A = pi r^2

78.5 = 3.14 r^2

Divide each side by 3.14

78.5/ 3.14 = r^2

25 = r^2

Take the square root of each side

sqrt(25) = sqrt(r^2)

5 = r

6 0
2 years ago
Read 2 more answers
What is the equation of the line whose graph is parallel to the graph of y=3x-10
TEA [102]
Hello,

y=3x+b is parallele to y=3x-10
In order to determine b, we must know something else.

3 0
2 years ago
Is (3,7) A solution why or why not?
galben [10]
What? Can you attach a photo?
6 0
2 years ago
Read 2 more answers
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