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Goshia [24]
2 years ago
7

Simply the following expressions:

Mathematics
2 answers:
Lapatulllka [165]2 years ago
5 0

Answer:

6.    <u> (2x - 1) </u>

      (3x + 2)

8.   <u>     y - 3     </u>

     y² - 3y + 9

Step-by-step explanation:

6.   <u> 2x² + 9x - 5</u>

      3x² + 17x + 10

= <u>(2x - 1) (x + 5)</u>

  3x² + 17x + 10

= <u>(2x - 1)  (x + 5)</u>

  (3x + 2) (x + 5)

= <u> (2x - 1) </u>

  (3x + 2)

8.  <u>y² - 9   </u>

    y³ + 27

= <u> (y + 3) (y - 3)</u>

      y³ + 27

= <u>     (y + 3) (y - 3)     </u>

  (y+3) (y² - 3y + 9)

= <u>     y - 3     </u>

  y² - 3y + 9

Debora [2.8K]2 years ago
5 0

Answer:

see below

Step-by-step explanation:

6)

2x² + 9x - 5

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

 3x² + 17x + 10

(2x - 1) (x + 5)

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

 3x² + 17x + 10

(2x - 1)  (x + 5)

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

(3x + 2) (x + 5)

(2x - 1)

-----------

(3x + 2)

8)

y² - 9  

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

y³ + 27

(y + 3) (y - 3)

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

   y³ + 27

(y + 3) (y - 3)    

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

(y+3) (y² - 3y + 9)

     y - 3    

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

 y² - 3y + 9

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Answer:

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Step-by-step explanation:

Total number of surfaces of cube are 6.

Each surface is square.

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From question,

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2 years ago
F(x) = { -2x -1, x ≤ 2
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Answer:

Use the appropriate entry method for piecewise functions for the graphing calculator of interest.

Step-by-step explanation:

For Desmos, the entry looks like ...

f(x) = {x ≤ 2: -2x-1,-x+4}

_____

For a TI-84 calculator, the entry may look like ...

Y₁ = (-2X–1)(X≤2) + (-X+4)(X>2)

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Hey!

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That means the probability is: \frac{5}{33}

Good luck and hope this helps! :)

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