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Allushta [10]
3 years ago
7

Which sets of numbers are closed under subtraction?

Mathematics
1 answer:
Alekssandra [29.7K]3 years ago
3 0
I'm pretty sure it is only b because <span>when you subtract two rational numbers, you always get back a rational number.</span>
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Algebra help please 100% correct only
shutvik [7]
2x + 3y + 2(x - y) - 3x


First you apply the distributive property:

2x +3y + 2(x) - 2(y) - 3x
2x + 3y +2x - 2y - 3x

The you combine like terms:

2x + 2x - 3x +3y - 2y
4x - 3x + y
x (x could also be 1x) + y (y could also be 1y)

The answer is x + y or 1x + 1y
5 0
3 years ago
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Darren is purchasing a home for $973000. He makes 25% down payment and obtains a 20 year fixed rate mortgage loan at 8% annual i
pogonyaev
Down payment
973,000×0.25=243,250

principle
973,000−243,250=729,750

interest
6,103.92×12×20−729,750=735,190.8

intangible tax
729,750×0.007=5,108.25

Total cost
243,250+729,750+735,190.8
+5,108.25=1,713,299.05
6 0
3 years ago
The temperature of a liquid in an experiment is at 0 degrees Celsius at 9 am. The experiment calls for the temperature to drop 1
RSB [31]

Answer:

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Step-by-step explanation:

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2 years ago
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8 0
3 years ago
The square below has an area of
Solnce55 [7]

Answer:

8-x meters

Step-by-step explanation:

Both 64 and x^2 are perfect squares, since 64=(8)^2 and x^2=(x)^2.

Additionally, 16x is twice the product of the roots of 64 and x^2, since 16x=2(8)(x).

So we can use h the square of a difference pattern to factor:

a^2-2(a)(b)+b^2=(a-b)^2

In this case, a=8 and b=x:

(8)^2-2(8)(x)+(x)^2=(8-x)^2

In conclusion...

64-16x+x^2=(8-x)^2

So the side length of the square is 8-x meters.

3 0
3 years ago
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