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Darina [25.2K]
4 years ago
12

Which equations are true identities ​

Mathematics
1 answer:
galben [10]4 years ago
4 0

Answer:

C

Step-by-step explanation:

Both A and B are true identities.

See attachment.

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How would you solve for x and y and what are x and y? Not sure what to do.
Ivahew [28]

Answer:

x = 26 2/3

y = 50

Step-by-step explanation:

you could set '2y-3x' equal to '-3x+y+50' because they are vertical angles

2y - 3x = -3x + y + 50

add 3x to each side to get:

2y = y + 50

y = 50

also, we know that (1/2y + 25) + (2y - 3x) = 180 because they form a straight line

3/2y + 25 - 3x = 180

subtract 25 from each side to get:

3/2y - 3x = 155

substitute 50 for 'y' to get:

3/2(50) - 3x = 155

75 - 3x = 155

-3x = 80

x = 26 2/3

4 0
3 years ago
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Answer:

True

Step-by-step explanation:

Hopefully this helps

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3 years ago
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nasty-shy [4]

Answer:

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7 0
4 years ago
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vovikov84 [41]
1 1/2=
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A graphical depiction of a frequency distribution for numerical data in the form of a column chart is called a
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