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2 years ago

Solve the inequality.

Mathematics

2 answers:

Mars2501 [29]2 years ago

8 0

Answer:

1 1/5 $\geq$ x OR one and on fifth is greater than or equal to x.

Step-by-step explanation:

2/5 $\geq$ x - 4/5

To isolate x, we need to add 4/5 to each side:

6/5 $\geq$ x is what we get

We can simplify it to:

1 1/5 $\geq$ x

ki77a [65]2 years ago

5 0

Add 4/5 to both sides

X <= 6/5

X <= 1 1/5

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For a Quadratic Equation of form : $a x^{2}+b x+c=0$ ---- eqn 1

The solution is $x=\frac{-b \pm \sqrt{b^{2}-4 a c}}{2 a}$

Now , the given Quadratic Equation is $x^{2}+5 x+7=0$ ---- eqn 2

On comparing Equation (1) and Equation(2), we get

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Its value determines the nature of roots

Now, here are the rules with discriminants:

1) D > 0; there are 2 real solutions in the equation

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3) D < 0; there are no real solutions in the equation

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