Can someone please help me ASAP

Mathematics

1 answer:

dimulka [17.4K]3 years ago

7 0

-2,8 is the correct answer

You might be interested in

Find the critical value z Subscript alpha divided by 2 that corresponds to the given confidence level. 80%

Neporo4naja [7]

Answer:

$Conf= 0.80$

With the confidence level we can find the significance level:

$\alpha =1-0.8=0.2$

And the value for $\alpha/2=0.1$ . Then we can use the normal standard distribution and we can find a quantile who accumulates 0.1 of the area on each tail and we got:

$z_{\alpha/2}= \pm 1.28$

Step-by-step explanation:

For this problem we have the confidence level given

$Conf= 0.80$

With the confidence level we can find the significance level:

$\alpha =1-0.8=0.2$

And the value for $\alpha/2=0.1$ . Then we can use the normal standard distribution and we can find a quantile who accumulates 0.1 of the area on each tail and we got:

$z_{\alpha/2}= \pm 1.28$

4 0

3 years ago

Find the value of x and y that make the quadrilateral

vitfil [10]

The quadrilateral have equal opposite sides, for example:

Then, (4x + 6) must be equal to (7x - 3), and (4y - 3) is equal to (3y + 1), therefore