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cluponka [151]
3 years ago
6

9-6x+x2 el dos va al cuadrado resuelvan lo porfA​

Mathematics
1 answer:
lisov135 [29]3 years ago
5 0

Answer:

6

Step-by-step explanation:

do 9-6 then

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According to chebyshev's theorem, at least what percent of the observations lie within plus and minus 1.75 standard deviations o
Alborosie
Chebyshev's theorem in statistics states that for many probability distributions, no more than 1/k² of measured values will be k standard deviations away from the mean.

Because the area under the probability distribution curve is equal to 1, Chebyshev's theorem means that the shaded area shown in the figure is equal to 1 - 1/k².

When k = 1.75, the shaded area is
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Therefore the percent of the area within +/- 1.75 standard deviations from the mean is
67.35/2 = 33.7%, which is at least 33% of the observations.

Answer:
According to the Chebyshev theorem, at least 33% of the observations lie within +/- standard deviations from the mean.

4 0
3 years ago
Solve the quadratic equation by using either a numeric or a graphic approach.
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Answer:

C

Step-by-step explanation:

x²-14x-49=0

x²-14x+49=49+49

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x-7=±7√2

x=7+7√2=7(1+√2)≈7(1+1.414)≈7(2.414)≈16.898≈16.9

or

x=7-7√2=7(1-√2)≈7(1-1.414)≈-7×0.414≈-2.898≈2.9

4 0
2 years ago
Select the correct answer. The difference of a number and 6 is the same as 5 times the sum of the number and 2. What is the numb
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Answer:

n = 1

Step-by-step explanation:

n - 6 = 5(n-2)

n - 6 = 5n - 10

-6 +10 = 5n - n

4 = 4n

n = 4/4

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Answer:

There you go

Step-by-step explanation:

3 0
3 years ago
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\bf&#10;\cfrac{dy}{dx}=-\cfrac{15}{8x^{\frac{7}{4}}}\implies &#10;\cfrac{dy}{dx}=-\cfrac{15}{8\sqrt[4]{x^7}}\\\\\\ \cfrac{dy}{dx}=-\cfrac{15}{8x\sqrt[4]{x^3}}&#10;
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