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2 years ago

What does the fact the pi is irrational indicate about it'd decimal equivalent

Mathematics

1 answer:

schepotkina [342]2 years ago

4 0

It goes on forever basically, as it can't be expressed as a fraction.

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4/5 equivalent fraction?

Grace [21]

4/5 = 8/10 = 12/15 = 16/20 = 20/25
Hope it helps

6 0

3 years ago

A: What are the solutions to the quadratic equation x2+9=0? B: What is the factored form of the quadratic expression x2+9? Selec

Paraphin [41]

Answer:

A. The solutions are $x=3i,\:x=-3i$ .

B. The factored form of the quadratic expression $x^2+9=(x-3i)(x+3i)$

Step-by-step explanation:

A. To find the solutions to the quadratic equation $x^2+9=0$ you must:

$\mathrm{Subtract\:}9\mathrm{\:from\:both\:sides}\\\\x^2+9-9=0-9\\\\\mathrm{Simplify}\\\\x^2=-9\\\\\mathrm{For\:}x^2=f\left(a\right)\mathrm{\:the\:solutions\:are\:}x=\sqrt{f\left(a\right)},\:\:-\sqrt{f\left(a\right)}\\\\x=\sqrt{-9},\:x=-\sqrt{-9}$

$x=\sqrt{-9} = \sqrt{-1}\sqrt{9}=\sqrt{9}i=3i\\\\x=-\sqrt{-9}=-\sqrt{-1}\sqrt{9}=-\sqrt{9}i=-3i$

The solutions are:

$x=3i,\:x=-3i$

B. Two expressions are equivalent to each other if they represent the same value no matter which values we choose for the variables.

To factor $x^2+9$ :

First, multiply the constant in the polynomial by $i^2$ where $i^2$ is equal to -1.

$x^2+9i^2$

Since both terms are perfect squares, factor using the difference of squares formula

$a^2-i^2=(a+i)(a-i)$

$x^2+9=x^2+9i^2=\left(-3i+x\right)\left(3i+x\right)$

5 0

3 years ago

-4x+2y=5 is this in a standard form

soldier1979 [14.2K]

Right. Your answer is still no because your x-value needs to be positive.

8 0

3 years ago

10. Mary is feeding the dog that comes every night.

Tanzania [10]

The passive voice of the sentences will be:

The dog that comes every night is fed by Mary.
Iceland's waterfalls are said to be wonderful by people.
The latest trends in technology are being followed young people.

<h3>What is a passive voice?</h3>

It should be noted that a passive voice simply means a form of verb where the subject undergoes the action of the verb.

In this case, the passive voice is used to emphasize the action. In order to identify the passive voice, one should look at what happened and who was responsible.

Learn more about passive voice on:

brainly.com/question/25897080

6 0

1 year ago

A car dealership had $114,000 in average monthly sales. If you made 30% of all the sales, what is your total sales? help me

Tcecarenko [31]

Answer:

I think it's $34,200

Step-by-step explanation:

$114,000 x 30% divide 100 = 34,200

6 0

2 years ago