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myrzilka [38]
4 years ago
5

What is the value of the expression below 20 + 8 - 4 - 4

Mathematics
1 answer:
seraphim [82]4 years ago
5 0

Answer:

20

Step-by-step explanation:

You are trying to find the value. To do so, simply simplify the expression. Combine the terms:

20 + 8 - 4 - 4

(20 + 8) + (-4 - 4)

28 + (-8) = 28 - 8 = 20

20 is your answer.

~

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Read 2 more answers
The volume of a refrigerator is x^3-3x^2-16x-12.It's the height x+2.What are the other two dimensions?
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Answer:

the other two dimensions are (x + 1) and  (x - 6)

Step-by-step explanation:

Given;

Polynomial function as volume of refrigerator = x³ - 3x²- 16x - 12

factor of the function as height of the refrigerator, = x + 2

Divide the polynomial function by the given factor to get the remaining factors, which are the other two dimensions;

                           x²  - 5x - 6

                          --------------------------------------

            x + 2  √ x³ - 3x²- 16x - 12

                      -  (x³  + 2x²)

                         ------------------------------

                                 -5x² - 16x - 12

                              -  (-5x² - 10x)

                         -------------------------------

                                           -6x - 12

                                         - (-6x - 12)

                         --------------------------------------

                                                 0

Factorize the quotient ( x²  - 5x - 6);

x²  - 5x - 6 =   x²  + x  -6x - 6

                  =   x (x + 1) - 6( x + 1)

                  = (x + 1) (x - 6)

Thus, the other two dimensions are (x + 1) and  (x - 6)

5 0
3 years ago
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