It's 7:10. There are 14 gray and 20 black, which simplifies to 7:10.
Answer:
´The variance is 10000
Step-by-step explanation:
The variance is defined as the square of standard deviation, consequently it is as follows:
σ^2=
σ^2=10000
Answer:
-5
Step-by-step explanation:
Answer:
1. 100 000, 89 000, 67 000, 55 000
2. 45 678, 34 567, 23 456, 12 345
3. 98 765, 87 654, 76 543, 65 432-
angles x y z are all acute because they are less than 90 degrees
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