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joja [24]
3 years ago
14

Which sets of numbers are closed under subtraction?

Mathematics
1 answer:
noname [10]3 years ago
3 0
The answer is:

B.
rational numbers

Because if you perform subtraction in a set of rational numbers, the result you get would still be a rational number.

This does not apply to the other sets.
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Marizza181 [45]

Answer:

It is 432

Step-by-step explanation:

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3 years ago
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Answer:

1/15   gal / mile   if your numbers are correct

Step-by-step explanation:

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MatroZZZ [7]

Answer: Choice A.  (8, 4)

==========================================================

Explanation:

Because x = 2y, we can replace every copy of x with 2y

Let's do so in the second equation

3x - 4y = 8

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y = 4

Use this y value to find x

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3 years ago
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VikaD [51]
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3 years ago
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schepotkina [342]

Answer:

∠B=60°

Step-by-step explanation:

In this right traingle, using angle B, you have the opposite side which is 6√102, and the adjacent side which is 6√34. Using SOHCAHTOA this invlolves TOA so tangent B = OPPOSITE/ADJACENT or tan B = 6√102/6√34. Simplifying gives tan B=√3. You can use your calculator to solve for B by taking the inverse tangent of √3 or you can use the known trig ratios from the unit circle if you have already learned that to find that  angle B is 60°

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3 years ago
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