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Kay [80]
3 years ago
14

The function f(x)=g(x), where f(x)=2x-5 and g(x)=x^2-6. The table below shows the process of solving using successive approximat

ions. Continue this process to find the positive solution to the nearest 10th.
Mathematics
2 answers:
Irina18 [472]3 years ago
8 0

Answer:

The solutions of the given situation is x=2.4 and x=-0.4.

Step-by-step explanation:

Given : The function f(x)=g(x), where f(x)=2x-5 and g(x)=x^2-6

To find : The positive solution of the given situation.

Solution :

We have given the functions :

f(x)=2x-5 and g(x)=x^2-6

The condition is f(x)=g(x)

Substitute the values, in the given condition

f(x)=g(x)

2x-5=x^2-6

x^2-2x-1=0

Solving the quadratic equation by discriminant method,

General form - ax^2+bx+c=0

D=b^2-4ac

Solution is x=\frac{-b\pm\sqrt{D}}{2a}

Equation is x^2-2x-1=0

where a=1 , b=-2, c=-1

D=b^2-4ac

D=(-2)^2-4(1)(-1)

D=4+4

D=8

Solution is x=\frac{-b\pm\sqrt{D}}{2a}

x=\frac{-(-2)\pm\sqrt{8}}{2(1)}

x=\frac{2\pm2\sqrt{2}}{2}

x=1\pm\sqrt{2}

x=1+\sqrt{2}, x=1-\sqrt{2}

x=2.4, x=-0.4

Therefore, The solutions of the given situation is x=2.4 and x=-0.4.

valkas [14]3 years ago
6 0

Answer:

The positive solution is 2.4.

Step-by-step explanation:

The given functions are

f(x)=2x-5

g(x)=x^2-6

It is given that

f(x)=g(x)

2x-5=x^2-6

0=x^2-6-2x+5

0=x^2-2x-1

The quadratic formula:

x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}

x=\frac{2\pm \sqrt{(2)^2-4(1)(-1)}}{2(1)}

x=\frac{2\pm \sqrt{8}}{2}

x=\frac{2\pm 2\sqrt{2}}{2}

x=\frac{2(1\pm \sqrt{2})}{2}

x=1\pm \sqrt{2}

x=2.4,-0.4

Therefore the positive solution is 2.4.

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Considering the given box-and-whisker plot, it is found that 50% of the data values are between 16 and 72.

<h3>What does a box-and-whisker plot shows?</h3>

A box and whisker plot shows five things:

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