2 years ago

I need help what is 3^{-2}

Mathematics

1 answer:

blagie [28]2 years ago

5 0

Answer:

0.1

Step-by-step explanation:

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3 1/2 divided by 2 1/4

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3 years ago

Which are the solutions of the quadratic equation? x2 = –5x – 3 –5, 0 StartFraction negative 5 minus StartRoot 13 EndRoot Over 2

boyakko [2]

Given:

The quadratic equation is $x^{2}=-5 x-3$

We need to determine the solutions of the quadratic equation.

Solution:

Let us solve the equation to determine the value of x.

Adding both sides of the equation by 5x and 3, we get;

$x^{2}+5 x+3=0$

The solution of the equation can be determined using quadratic formula.

Thus, we get;

$x=\frac{-5 \pm \sqrt{5^{2}-4 \cdot 1 \cdot 3}}{2 \cdot 1}$

$x=\frac{-5 \pm \sqrt{25-12}}{2 }$

$x=\frac{-5 \pm \sqrt{13}}{2 }$

Thus, the two roots of the equation are $x=\frac{-5 + \sqrt{13}}{2 }$ and $x=\frac{-5- \sqrt{13}}{2 }$

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What is 2 hours and 20 minutes as a fraction

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Answer:

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Step-by-step explanation:

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2 years ago

X=1.2(60) I need major help

Elodia [21]

Answer:

x= 72

Step-by-step explanation:

simplify 1.2 × 60 will equal 72 so therefore x will be 72

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