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mihalych1998 [28]
2 years ago
14

What is the exact length of AB? 4 m 8 mm m 2 TT m

Mathematics
1 answer:
dalvyx [7]2 years ago
5 0

Answer:

The answer is

\pi

if I am not wrong

Step-by-step explanation:

First you need to convert 45 degress to radians,then you use the arc length formula which is = thr radius * the angle to get the answer

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Variance is: Multiple Choice the average squared deviations about the mean of a distribution of values. an empirically testable
DENIUS [597]

Multiple choice answers are clearly defined as below for clarity:

A. the average squared deviations about the mean of a distribution of values.

B. an empirically testable statement that is an unproven supposition developed in order to explain certain phenomena.

C. the error made by rejecting the null hypothesis when it is true.

D. a statement that asserts the status quo; that is, any change from what has been thought to be true is due to random sampling order.

E. a statement that is the opposite of the null hypothesis

Answer:

A. The average squared deviations about the mean of a distribution of values.

Explanation:

A. the average squared deviations about the mean of a distribution of values. Correct

Standard deviation is how data is distributed around the mean. It is also the square root of the Variance. Therefore, the variance is the square of the standard deviation which is distributed around the mean.

B. an empirically testable statement that is an unproven supposition developed in order to explain certain phenomena. Incorrect

This is false as this is rather the definition for hypothesis.

C. the error made by rejecting the null hypothesis when it is true. Incorrect

This is false as this is the definition for the probability of committing a type I error

D. a statement that asserts the status quo; that is, any change from what has been thought to be true is due to random sampling order. Incorrect

This is false as this defines what a null hypothesis is.

E. a statement that is the opposite of the null hypothesis. Incorrect

The opposite of the null hypothesis is alternative hypothesis.

6 0
2 years ago
The radius of a circle is equal to 8 units. Find the central angle that intercepts an arc length of
lana66690 [7]

Answer:

ewwwwww

I can't believe how much I love the opportunity and I have a strong doubt that she is it possible for you to know if you get the chance to read it and it is

let your keyboard type for you

3 0
2 years ago
Anna learns in her science class that the human eye blinks an average of 4,200,000 times a year. What is this number expressed i
Alla [95]
I think 4.2 x 10^6 is the answer you're looking for.
5 0
3 years ago
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A family has a yearly income or $60,000. They want to spend no more than 30% of their income on rent for their house . How much
mixas84 [53]

<em>18000. 30% of 60,000 is 18,000</em>

5 0
3 years ago
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Plssss help<br>•PQ<br>•PR<br>•PS<br>•QT​
Shtirlitz [24]

Answer:

=>. PQ

=> PQ is the altitude of this given traingle .

=>. because it is making 90° angle with QR

6 0
3 years ago
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