3 years ago

Pls help me. The one with the symbol are the answer choices for the questions

Mathematics

1 answer:

SIZIF [17.4K]3 years ago

3 0

Answer:

∈

Step-by-step explanation:

∈ symbol indicates the data set on the left side is fully included in the data set on the right side

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2x+1y=25 <br> find the equation of x

leonid [27]

Answer:

−1

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Step-by-step explanation:

Let's solve for x.

2x+1y=25

Step 1: Add -y to both sides.

2x+y+−y=25+−y

2x=−y+25

Step 2: Divide both sides by 2.

−y+25

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Alex17521 [72]

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3 years ago

Wich number is the principal square root of 49

myrzilka [38]

A principle square root of a real number that's not negative, such as 49, is the square root of that number that is not negative.

If you take the square root of 49, you get either -7 or 7, since both $7^{2}$ and $(-7)^{2}$ equal 49. However, the principle square root would be A) 7, since it's not negative.

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