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3 years ago

Escribe una expresión algebraica para la palabra frase: el producto de 636 y un número w

Mathematics

1 answer:

diamong [38]3 years ago

5 0

Answer:

636w

Step-by-step explanation:

producto = ×

$636 \times w\\\\= 636w$

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Step-by-step explanation: slope is the difference in y values over the difference in the c values

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From experience, an airline knows that only 80% of the passengers booked for a certain flight actually show up. If 9 passengers

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Answer: 0.74

Step-by-step explanation:

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$P(x)=^nC_xp^x(1-p)^{n-x}$

Then , the probability that more than 6 of them show up will be :-

$P(x>6)=P(7)+P(8)+P(9)\\\\=^9C_7(0.8)^7(0.2)^{2}+^9C_8(0.8)^8(0.2)^{1}+^9C_9(0.8)^9(0.2)^{0}\\\\=\dfrac{9!}{7!(9-7)!}(0.8)^7(0.2)^{2}+(9)(0.8)^8(0.2)+(1)(0.8)^9\approx0.3020+0.3020+0.1342=0.7382\approx0.74$

Hence, the probability that more than 6 of them show up = 0.74

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3 years ago

3. You are going on a camping trip with your family for 3 days. You decided that you need 5 batteries for your flashlights. At t

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Answer:

I would say 15 batteries because you were gonna need five batteries but then you extend it to nine days.

Step-by-step explanation:

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3 years ago

Simplify.<br><br> −6x+8/6−3/2x−1/2+5/2x

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Answer:

Okay!

Step-by-step explanation:

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-- -------------

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f p(x) and q(x) are arbitrary polynomials of degreeat most 2, then the mapping< p,q >= p(-2)q(-2)+ p(0)q(0)+ p(2)q(2)defin

Natasha2012 [34]

We're given an inner product defined by

$\langle p,q\rangle=p(-2)q(-2)+p(0)q(0)+p(2)q(2)$

That is, we multiply the values of $p(x)$ and $q(x)$ at $x=-2,0,2$ and add those products together.

$p(x)=2x^2+6x+1$

$q(x)=3x^2-5x-6$

The inner product is

$\langle p,q\rangle=-3\cdot16+1\cdot(-6)+21\cdot(-4)=-138$

To find the norms $\|p\|$ and $\|q\|$ , recall that the dot product of a vector with itself is equal to the square of that vector's norm:

$\langle p,p\rangle=\|p\|^2$

So we have

$\|p\|=\sqrt{\langle p,p\rangle}=\sqrt{(-3)^2+1^2+21^2}=\sqrt{451}$

$\|q\|=\sqrt{\langle q,q\rangle}=\sqrt{16^2+(-6)^2+(-4)^2}=2\sqrt{77}$

Finally, the angle $\theta$ between $p$ and $q$ can be found using the relation

$\langle p,q\rangle=\|p\|\|q\|\cos\theta$

$\implies\cos\theta=\dfrac{-138}{22\sqrt{287}}\implies\theta\approx1.95\,\mathrm{rad}\approx111.73^\circ$

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3 years ago