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vova2212 [387]
3 years ago
15

f x + y is rational, must x and y each be rational? A) Yes; because the sum of rationals is rational. B) No; because the sum of

irrationals is always irrational. C) No; because x and y could be additive inverses of each other. D) Yes; because x and y must be integers, and integers are rational.
Mathematics
1 answer:
Rudik [331]3 years ago
7 0
The answer is D) Yes; because x and y must be integers, and integers are rational.
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Identify terms, coefficients, factors, and the constant: 5(2x + 4) + 3x
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Answer:

Terms:

<em>5, 2x, 4, 3x</em>

Coefficients:

<em>2 in 2x, and 3 in 3x</em>

Constants:

<em>5 and 4</em>

Factors:

<em>5, 2x, and 4</em>

Step-by-step explanation:

For terms, all of them are terms because they are all in the expression.

For coefficients, coefficients are ones that have a variable (think of it as a <em>copilot</em> kind of thing).

For factors, factors are terms that are multiplied together together to get a <em>product</em> (the answer).

For constants, these are terms that stand alone, by themselves. They are not attached to variables.

The answer is <em>13x + 20, </em>too, just in case you needed that.

Have a great day and hope this helps!

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How to find the diameter if you have the circumference
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Answer:

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Step-by-step explanation:

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3 years ago
Find all the real cube roots of -343.
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The Cube Root Of -343 is ( -7)

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Which graph represents the function f(x)=-|x|-2?
skad [1K]

Answer:

ind the absolute value vertex. In this case, the vertex for y=−|x|−2 is (0,−2).

(0,−2)

The domain of the expression is all real numbers except where the expression is undefined. In this case, there is no real number that makes the expression undefined.

Interval Notation:

(−∞,∞)

Set-Builder Notation:  {x|x ∈ R}

For each x value, there is one y value. Select few x values from the domain. It would be more useful to select the values so that they are around the x value of the absolute value vertex.

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−2   −4

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 0   −2

 1    −3

 2   −4

Step-by-step explanation:

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3 years ago
Write 31/50<br> As a percentage and a decimal
swat32
Divide 31 by 50 and that will give you .62 move the decimal point two places to the right and that gives you 62%. :)
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