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Can you draw a triangle with 20 degrees and 10 degrees and 150 degrees?
Yes. Since the sum is 180 degrees, that set of three numbers is a perfectly good set of angles for a triangle.
Which subset does the square root of 13 belong in?
It belongs to many many subsets including: {sqrt(13)}, The set of square roots of integers The set of square roots of primes The set of square roots of numbers between 12 and 27 {3, -9, sqrt(13)} The set of irrational numbers The set of real numbers
What does a 60 degree angle look like?
The hands of a clock at two o'clock are set at a 60 degree angle.
Is the set 0 1 closed under extraction of square root?
No. The square roots of 0.25 are 0.5 AND -0.5, the second of which does not belong to the set.
Explain how you find the mean of a set of data?
To answer this question I will use an example. Data set: 10, 20, 30, 40, 50. First find the sum of all the numbers...so 10+20+30+40+50= 150. Then you take the sum (150) and divide it by the number of numbers in the data set. So 150 divided by 5 (the number of numbers in this data set) = 30. 30= the mean of the above data set. Finding the mean is pretty simple. :)
