9/81 is equivalent to which fraction ?

Mathematics

2 answers:

Kobotan [32]3 years ago

8 0

$\frac{1}{9}$

kogti [31]3 years ago

7 0

Answer:

Step-by-step explanation:

1/9 is the fraction simplified

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I need help with this please

pochemuha

Answer: 1. x^2-5x+4

2. x^2-7x+6

3. x^3-7x^2+11x-5

4. x-5

Step-by-step explanation:

1. x^2-6x+5+x-1=

x^2-6x+x+5-1=x^2-5x+4

2. x^2-6x+5-(x-1)=

x^2-6x+5-x+1=

x^2-6x-x+5+1=x^2-7x+6

3. (x^2-6x+5) * (x-1)=

x(x^2-6x+5)-1(x^2-6x+5)=

x^3-6x^2+5x-x^2+6x-5=

x^3-6x^2-x^2+5x+6x-5=x^3-7x^2+11x-5

4. (x^2-6x+5)/(x-1)=

(x^2-x-5x+5)/(x-1)=

(x(x-1)-5(x-1))/(x-1)=

(x-5)(x-1)/(x-1)=x-5

7 0

1 year ago

What is the solution to ln (x2 - 16) = 0?

bogdanovich [222]

ANSWER

$x = \pm \sqrt{17}$
EXPLANATION

The given equation is

$ln( {x}^{2} - 16) = 0$

Take antilogarithm of both sides to base e.

${e}^{ ln( {x}^{2} - 16) } = {e}^{0}$

This will simplify to

${x}^{2} - 16 = 1$

Group like terms to obtain,

${x}^{2} = 1 + 16$

${x}^{2} = 17$

Take square root of both sides to get,

$x = \pm \sqrt{17}$