3 years ago

A perpendicular bisector must be the same length as the segment it bisects True or false

1 answer:

6 0

False

A perpendicular bisector does not have to be the same length as the segment it bisects, it only needs to bisect the segment through its center.

Hope this helps!

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A recent survey showed that among 100 randomly selected college seniors, 20 plan to attend graduate school and 80 do not. determ

Temka [501]

The confidence interval would be (0.122, 0.278).

We first find our z-score. We want a 95% confidence interval:

0.95/2 = 0.475

Looking this up in the z-table, (http://www.statisticshowto.com/tables/z-table/) we see the z-score is 1.96.

The formula we will use is:

$p \pm z\sqrt{\frac{p(1-p)}{n}}$

In this problem, p = 20/100 = 0.2, and n=100:

$0.2 \pm 1.96\sqrt{\frac{(0.2)(0.8)}{100}}
\\
\\0.2\pm 0.0784
\\
\\(0.2-0.0784, 0.2+0.0784)
\\
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4 years ago

What is a rate in math.

Ierofanga [76]

Answer:

a ratio between two different units

for example 60miles per 5 hours

Step-by-step explanation:

let me know if you need unit rate yoo :)

7 0

3 years ago

Whats the mean of 47,40,47,48,41,47,45.