2 years ago

In the figure, m 2 2 = (2x +50) and m 2 7 = (5x +20) ° What is m < 2? (G5A)

Mathematics

1 answer:

Harlamova29_29 [7]2 years ago

8 0

Answer:

honestamente no lo sé jajaja

Step-by-step explanation:

jajajaja

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Contact [7]

Answer: a. n= 1068

b. n= 164

Step-by-step explanation:

The formula to find the sample size :

$n=p(1-p)(\dfrac{z^{*}}{E})^2$

, where p=prior population proportion , z* = critical z-value and E = Margin of error.

Here , let p=proportion of computers that use a new operating system.

Given : Confidence level = 95%

i.e. z* = 1.96 [by z-table]

Margin of error : E = 3% =0.03

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Then, $n=(0.5)(1-0.5)(\dfrac{1.96}{0.03})^2=1067.11111\approx1068$

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An equilateral triangle can have angles that each measure 68° true or false

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