There are total 10 right angles in the given diagram, hence option (b) is correct match.
<em>Refer the attached image for clarification. </em>
Find the measure of the indicated angle.
1 answer:
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Answer:
Standard deviation of the sample = 17.421
Step-by-step explanation:
We are given that in a random sample of 80 teenagers, the average number of texts handled in one day is 50.
Also, the 96% confidence interval for the mean number of texts handled by teens daily is given as 46 to 54.
So, sample mean, = 50 and Sample size, n = 80
Let sample standard deviation be s.
96% confidence interval for the mean number of texts, is given by ;
96% confidence interval for =
[46 , 54] =
Since lower bound of confidence interval = 46
So, 46 =
50 - 46 =
s = = 17.421
Therefore, standard deviation of the sample is 17.421 .
Answer:
13 units
Step-by-step explanation:
(-1,5) and (4, -7)
To find the distance of two points, we use the distance formula:
Let's plug in what we know.
Evaluate the double negative.
Evaluate the parentheses.
Evaluate the exponents.
Add.
Evaluate the square root.
13 units
Hope this helps!