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solniwko [45]
3 years ago
5

Factoring math/////////

Mathematics
2 answers:
damaskus [11]3 years ago
8 0

Answer:

Step-by-step explanation:

If you want to factor this, you have to use the quadratic formula to do so.

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

For us, it looks like this:

x=\frac{-3+/-\sqrt{(-3)^2-4(5)(4)} }{2(5)}

which simplifies to

x=\frac{-3+/-\sqrt{-71} }{10}

Since it breaks every mathematical rule to have a negative number under an even index radical, we have to deal with that using the imaginary "i".  You should know at this point that i^2=-1

so we will do a rewrite on that equation above:

x=\frac{-3+/-\sqrt{i^2*71} }{10}

which simplifies further to

x=\frac{-3+/-i\sqrt{71} }{10}

This is the answer but we can separate it into its proper standard form which is

x=-\frac{3}{10}+\frac{\sqrt{71} }{10}i and x=-\frac{3}{10}-\frac{\sqrt{71} }{10}i

Lyrx [107]3 years ago
5 0

Answer:

Step-by-step explanation:

If you want to factor this, you have to use the quadratic formula to do so.

For us, it looks like this:

which simplifies to

Since it breaks every mathematical rule to have a negative number under an even index radical, we have to deal with that using the imaginary "i".  You should know at this point that

so we will do a rewrite on that equation above:

which simplifies further to

This is the answer but we can separate it into its proper standard form which is

and

Click to let others know, how helpful is it

Read more on Brainly.com - brainly.com/question/15264283#readmore

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Step-by-step explanation:

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The actual dimensions would be 3.375 feet by 3.5 feet. The area of the room would be 11.8 square feet.

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Suppose you pay a dollar to roll two dice. if you roll 5 or a 6 you Get your dollar back +2 more just like it the goal will be t
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Answer:

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Step-by-step explanation:

The sample space for the event of rolling two dice is presented below

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(5,1), (6,1)\\ (5,2), (6,2)\\( (5,3), (6,3)\\ (5,4), (6,4)\\(1,5), (2,5), (3,5), (4,5), (5,5), (6,5)\\(1,6), (2,6), (3,6), (4,6), (5,6), (6,6)

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Therefore:

P(rolling a 5 or a 6)  =\dfrac{20}{36}

The probability distribution of this event is given as follows.

\left|\begin{array}{c|c|c}$Amount Won(x)&-\$1&\$2\\&\\P(x)&\dfrac{16}{36}&\dfrac{20}{36}\end{array}\right|

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