9514 1404 393
Answer:
not a right triangle
Step-by-step explanation:
These lengths will form a triangle iff ...
10 + 20 > 30 . . . . . false
These side lengths do not form a triangle. It is NOT a right triangle.
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<em>Additional comment</em>
We notice the differences between these numbers are the same: 10. The only right triangle with side lengths having the same difference is some multiple of a 3-4-5 right triangle. For a right triangle with side lengths having a difference of 10, the sides would have to be 30, 40, 50--not 10, 20, 30.
The first cube can land in any one of 6 ways.
The second cube can land in any one of 6 ways.
Total number of ways that 2 dice can land = (6 x 6) = 36 ways.
For any of these ways, the sum of the numbers rolled is 9 :
3, 6
4, 5
5, 4
6, 3
There are 4 ways to roll a 9, out of a total of 36 ways that
the dice can land. So the probability of rolling a 9 is
4 / 36 = 1 / 9 = <em>11-1/9 percent</em>
The scale drawing of the computer lab will have a length of 4 centimeter and a widtgh of 6 centimeter.
You can do long division by moving the decimals over and following DMSBR, but your final answer is 24.8
