2 years ago

A box contains 6 red pens and 4 blue pens. Cory randomly picks a pen from

Mathematics

1 answer:

Monica [59]2 years ago

4 0

Answer:

Hay probabilidad

Step-by-step explanation:

porque hay mas boligrafos rojos que azules

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Consider the quadratic equation x squared = 4x - 5. how many solutions does the equation have?

snow_lady [41]

Answer:

The quadratic equation has two complex solutions

Step-by-step explanation:

we know that

The formula to solve a quadratic equation of the form $ax^{2} +bx+c=0$ is equal to

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

in this problem we have

$x^{2}=4x-5$

Equate to cero

$x^{2}-4x+5=0$

$a=1\\b=-4\\c=5$

substitute in the formula

$x=\frac{4(+/-)\sqrt{-4^{2}-4(1)(5)}} {2(1)}$

$x=\frac{4(+/-)\sqrt{16-20}} {2}$

$x=\frac{4(+/-)\sqrt{-4}} {2}$

Remember that

$i^{2}=-1$

$x=\frac{4(+/-)2i} {2}$

$x=2(+/-)i$

therefore

The quadratic equation has two complex solutions

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3 years ago

Use complete sentences to describe why it is necessary to do the same thing to both sides of an equation to perform valid operat

liq [111]

The reason why it is important to keep each side of a problem the same is because if you do, your problem will be unequal. This will mess the whole problem up.

Hope this Helps!
Brainliest would be appreciated :)

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2 years ago

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on a game show, sheila was asked 6 questions and missed all 6. Her total score was -90 points. If each missed question was worth

Lyrx [107]

Answer:

each question was worth 15 points

Step-by-step explanation:

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What number can be used to complete the volume statement for the cone below?

saul85 [17]

Volume =16.89cm squares

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3 years ago

Help please I really need help

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Help with what tho.......

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