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alekssr [168]
3 years ago
8

Please help ASAP. The question is down below. Thanks

Mathematics
1 answer:
beks73 [17]3 years ago
6 0

Answer:

B

Step-by-step explanation:

there is three sections to be fenced using 78 m of fence so it would be letter B.

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The answer is 16 % :D 
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For the functions f(x) = x^2+ 8x + 2 and g(x) = -5+9, find (f•g)(x)and (f.g)(-1).
Ne4ueva [31]

Answer:  (f·g)(x) = -5x³ - 31x² + 62x + 18

               (f·g)(-1) = -70

(fog)(x) = 25x² - 130x + 155

(fog)(-1) = 310

<u>Step-by-step explanation:</u>

f(x) = x² + 8x + 2          g(x) = -5x + 9

(f·g)(x) = (x² + 8x + 2)(-5x + 9)

          = -5x³ + 9x²

                    - 40x² + 72x

            <u>                    - 10x + 18</u>

          = -5x³ - 31x² + 62x + 18

(f·g)(-1)= -5(-1)³ - 31(-1)² + 62(-1) + 18

         =  -5(-1)  - 31(1)    - 62      + 18

         =    5     -   31      - 62      + 18

         =  -70

****************************************************************************************

(fog)(x) = (-5x + 9)² + 8(-5x + 9) + 2

           = 25x² - 90x + 81

                       - 40x + 72

              <u>                   +   2</u>

           = 25x² - 130x + 155

(fog)(-1) = 25(-1)² - 130(-1) + 155

            =   25    +  130    + 155

            = 310

<em>It wasn't clear if you wanted multiplication or composition so I solved both.</em>

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3 years ago
What is the correct line graph for y=3x+5?
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Answer:

The equation y=−3x+5 is in slope intercept form, and represents a straight line in which -3 is the slope, and 5 is the y -intercept.

3 0
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Find the solution set for this equation.<br> a^2 + 7a=0<br> Separate the two values with a comma.
olga2289 [7]

Answer:

a = 0,-7

Step-by-step explanation:

a^2 + 7a=0

Factor out an a

a(a+7) =0

Using the zero product property

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Help me please???????​
slava [35]

Answer:

The answer is 25.1 degrees.

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