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rodikova [14]
3 years ago
15

Given: A = 12,4,5,7,8) B = (3,5,8,9) What is A UB?

Mathematics
2 answers:
Naily [24]3 years ago
7 0

Answer:

A u B = { 3, 4, 5, 7, 8, 9, 12 }

Step-by-step explanation:

The union of sets u is the set of elements in set A, or set B, or both

Thus

A u B = { 3, 4, 5, 7, 8, 9, 12 }

Vika [28.1K]3 years ago
6 0

Answer:

AUB = {3,4,5,7,8,9,12}

Step-by-step explanation:

The union of the 2 sets contains all the elements in both sets except where there are duplicates,like here where we have 2 5's and 2 8's, only one is included.

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What is the length of the base of a yield sign that has a height of 14 inches and has an area of 84 square inches? Write the num
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That's simple, it is 6. Hope this helps.
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Which of the following describes the end behavior of f(x) = 2x 3x2 − 3 ? The graph approaches 0 as x approaches infinity. The gr
Arada [10]
1) An operator is missing in your statement. Most likely the right expression is:

               2x
f(x) = -------------
           3x^2 - 3

So, I will work with it and find the result of each one of the statements given to determine their validiy.

2) Statement 1: <span>The graph approaches 0 as x approaches infinity.


Find the limit of the function as x approaches infinity:

                                    2x
Limit when x →∞ of ------------
                                 3x^2 - 3

Start by dividing numerator and denominator by x^2 =>

      2x / x^2                         2/x
--------------------------- = ---------------
  3x^2 / x^2 - 3 / x^2       3 - 3/x^2

                                      2/∞             0          0
Replace x with ∞ =>  ------------ =  ------- =  ---- = 0
                                    3 - 3/∞        3 - 0      3

Therefore the statement is TRUE.

3) Statement 2: The graph approaches 0 as x approaches negative infinity.

</span><span><span>Find the limit of the function as x approaches negative infinity:

                                        2x
Limit when x → - ∞ of ------------
                                     3x^2 - 3

Start by dividing numerator and denominator by x^2 =>

      2x / x^2                         2/x
--------------------------- = ---------------
  3x^2 / x^2 - 3 / x^2       3 - 3/x^2

                                        2/(-∞)           0            0
Replace x with - ∞ =>  ------------ =  ---------- =  ---- = 0
                                      3 - 3/(-∞)      3 - 0        3

Therefore, the statement is TRUE.</span>


4) Statement 3: The graph approaches 2/3 as x approaches infinity.

FALSE, as we already found that the graph approaches 0 when x approaches infinity.

5) Statement 4: The graph approaches –1 as x approaches negative infinity. </span>

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4 years ago
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