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exis [7]
3 years ago
15

HELP PLZ

Mathematics
2 answers:
Alexxandr [17]3 years ago
7 0

Answer:

x=\frac{-7-\sqrt{17}}{2}\textrm{ or }x=\frac{-7+\sqrt{17}}{2}

Step-by-step explanation:

Given:

The equation is given as:

x^2=-7x-8

Rearrange the above equation in standard quadratic equation of the form ax^2+bx+c=0

Adding 7x + 8 on both sides, we get

x^2+7x+8=0

Here, a=1,b=7,c=8

Now, we solve this using quadratic formula,

x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}\\x=\frac{-7\pm \sqrt{7^2-4(1)(8)}}{2(1)}\\x=\frac{-7\pm \sqrt{49-32}}{2}\\x=\frac{-7\pm \sqrt{17}}{2}\\\\\\\therefore x=\frac{-7-\sqrt{17}}{2}\textrm{ or }x=\frac{-7+\sqrt{17}}{2}

iVinArrow [24]3 years ago
3 0

Answer:  option D.

Step-by-step explanation:got a 100 on it

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Tresset [83]

Answer:

4(1- 2x)

h = 9 cm

Step-by-step explanation:

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8 0
3 years ago
Please help me use full explanation please hurry
Keith_Richards [23]

Step-by-step explanation:

   As we can see the question given

    f(x) is varying accordingly to the interval

  <em>  f(x) = 2 if 2<x≤4</em>

    The value of function is 2 for the interval 2 to 4

    and interval is open at x=2 and closed at x = 4

   <em> f(x) = x + 3  if  4<x<8</em>

     The value of function is x + 3 and it is open at x = 4 and x = 8

    <em>f(x) = 2x if x \geq8</em>

     The value of function is 2x for x greater than or equal to 8

    The image is attached for more clearing of doubt

   

3 0
3 years ago
Pls help ill give brainliest
ki77a [65]
The answer would be:

3q x (2q + 1) x (q^2 - 4)

Hope this helped :)
7 0
3 years ago
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