2 years ago

I REALLY NEED HELP PLZ :(((((

1 answer:

5 0

Answer:

Where is the picture?

Step-by-step explanation:

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crimeas [40]

The answer is D. 12
4, 3 and 2 are all factors of 12 (least common denominator)

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2 years ago

Whitepunk [10]

That's 4! (faculty), ie., 4x3x2x1 = 24.
one of four can win, then there are 3 left for second place, and so on...

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3 years ago

forsale [732]

$1+\dfrac{\sqrt{5}}{2},1-\dfrac{\sqrt{5}}{2}$

Step-by-step explanation:

The given equation is $4x^{2}-8x-1$

Let $a$ be the coefficient of $x^{2}$

Let $b$ be the coefficient of $x$

Let $c$ be the constant.

Then the roots α,β for the equation $ax^{2}+bx+c$ are $\dfrac{-b+\sqrt{b^{2}-4ac} }{2a},\dfrac{-b-\sqrt{b^{2}-4ac} }{2a}$

So,α= $\frac{-b+\sqrt{b^{2}-4ac} }{2a}=\frac{8+\sqrt{64+16} }{8}=\frac{8+4\sqrt{5}}{8}=1+\frac{\sqrt{5}}{2}$

β= $\frac{-b-\sqrt{b^{2}-4ac} }{2a}=\frac{8-\sqrt{64+16} }{8}=\frac{8-4\sqrt{5}}{8}=1-\frac{\sqrt{5}}{2}$ .

So the roots are $1+\frac{\sqrt{5}}{2},1+\frac{\sqrt{5}}{2}$

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2 years ago

svlad2 [7]

Hi ;-)

$8x=y \ \ /:8\\\\\boxed{x=\frac{y}{8}}$

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2 years ago

kherson [118]

Answer:

Sales tax would be $2.59

just multiply the percentage by the total price

8 0

2 years ago