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Daniel [21]
4 years ago
5

Question 5 ...............................

Mathematics
1 answer:
Gala2k [10]4 years ago
8 0

Answer:

x² + 4x + 3

Step-by-step explanation:

Supose answer A is true...

Because the division of

{ (x -5) * (x² + 4x + 3) } / (x -5) = (x² + 4x + 3)

.... you should only have to check if

(x -5) * (x² + 4x + 3) = x³ - x² - 17x - 15

That is what to do:

(x -5) * (x² + 4x + 3)

using FOIL method you get...

x³ + 4x² + 3x - 5x² -20x - 15

x³ + (4x² - 5x²) (-20x + 3x) - 15

and this is exactly x³ - x² - 17x - 15

Hence Answer A is correct.

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y= -2/3x+11

Step-by-step explanation

you just have to change the number without an x

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Please help me..I don't understand how to solve problems like
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All sets that contain the number 5 ?
vivado [14]
Real numbers, rational numbers, Integers, Whole numbers, and Natural numbers. 
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Given A = {x | x &lt; 1}, B = {x | x ≥ 5}, and C = {x | x = 5}, match the following items. 1. A B Ø 2. A C {x | x ≥ 5} 3. B C {x
ivann1987 [24]

Answer:

The matching is shown below.

Step-by-step explanation:

The given sets are defined as

A = {x | x < 1}

It means all the values of x which are less than 1.

B = {x | x ≥ 5}

It means all the values of x which are greater than or equal to 5.

C = {x | x = 5}

It means all the value of x is 5.

Union of two sets contains all the elements of both sets.

Intersection of two sets contains only common elements of both sets.

The matching is shown below.

        Sets                              Correct value

1.     A ∪ B                         {x | x < 1 or x ≥ 5}

2. A ∪ C                         {x | x < 1 or x = 5}

3. B ∪ C                         {x | x ≥ 5}

4. A ∩ B                         Ø

5. B ∩ C                         {x | x = 5}

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