Dado um triângulo ABC, marca-se um ponto D no lado AB. Mostre que CD é menor do que o comprimento de um dos lados AC ou BC.

Mathematics

2 answers:

Vilka [71]1 year ago

6 0

Answer:

Idont kwow

Step-by-step explanation:

Yes idont know

I am Lyosha [343]1 year ago

3 0

Answer:

uiiiyuuuuu ok I will be there by tomorrow morning and will be yyy to you and your family a br of a good night and will be there by tomorrow morning and will be there by tomorrow morning and will be there by tomorrow

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A random sample of n D 225 and xN D 21 was drawn from a normal population with a known

Rainbow [258]

Using the z-distribution, the 95% confidence interval of the population mean is: (17.5, 24.5).

<h3>What is a z-distribution confidence interval?</h3>

The confidence interval is:

$\overline{x} \pm z\frac{\sigma}{\sqrt{n}}$

In which:

$\overline{x}$ is the sample mean.

z is the critical value.

n is the sample size.

$\sigma$ is the standard deviation for the population.

In this problem, we have a 95% confidence level, hence $\alpha = 0.95$ , z is the value of Z that has a p-value of $\frac{1+0.95}{2} = 0.975$ , so the critical value is z = 1.96.