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Andrei [34K]
2 years ago
7

Can someone help me PLEAS

Mathematics
1 answer:
slavikrds [6]2 years ago
6 0

Answer:

D

Step-by-step explanation:

An irrational number is a number that cannot be expressed as a fraction for any integers and. . Irrational numbers have decimal expansions that neither terminate nor become periodic

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PLEASE HELP ME QUICKLY
Bumek [7]

Answer:

10

Step-by-step explanation:

theres your answer now u help me

8 0
3 years ago
Read 2 more answers
What are the roots of this equation? x2-4x+9=0
zysi [14]

Considering the definition of zeros of a function, the zeros of the quadratic function f(x) = x² + 4x +9 do not exist.

<h3>Zeros of a function</h3>

The points where a polynomial function crosses the axis of the independent term (x) represent the so-called zeros of the function.

In summary, the roots or zeros of the quadratic function are those values ​​of x for which the expression is equal to 0. Graphically, the roots correspond to the abscissa of the points where the parabola intersects the x-axis.

In a quadratic function that has the form:

f(x)= ax² + bx + c

the zeros or roots are calculated by:

x1,x2=\frac{-b+-\sqrt{b^{2}-4ac } }{2a}

<h3>This case</h3>

The quadratic function is f(x) = x² + 4x +9

Being:

  • a= 1
  • b= 4
  • c= 9

the zeros or roots are calculated as:

x1=\frac{-4+\sqrt{4^{2}-4x1x9 } }{2x1}

x1=\frac{-4+\sqrt{16-36 } }{2x1}

x1=\frac{-4+\sqrt{-20 } }{2x1}

and

x2=\frac{-4-\sqrt{4^{2}-4x1x9 } }{2x1}

x2=\frac{-4-\sqrt{16-36 } }{2x1}

x2=\frac{-4-\sqrt{-20} }{2x1}

If the content of the root is negative, the root will have no solution within the set of real numbers. Then \sqrt{-20} has no solution.

Finally, the zeros of the quadratic function f(x) = x² + 4x +9 do not exist.

Learn more about the zeros of a quadratic function:

brainly.com/question/842305

brainly.com/question/14477557

#SPJ1

6 0
1 year ago
Consider the equation 4x=8.<br> Which value could be substituted x to make the equation TRUE?
const2013 [10]
X=2 (4 x 2 = 8) so 2 is the answer
6 0
3 years ago
Read 2 more answers
Evaluate the expression when n=3. 3 squared+ 16​
natita [175]
3^2 + 16
= (3 • 3) + 16
= 9 + 16
= 25

~
5 0
3 years ago
Studies show that the more hours that students watch tv, the more snacks they eat. Which scatter plot represents this relationsh
Annette [7]
Maybe a i’m not sure though
5 0
3 years ago
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