A = 2 * a^2 * (1 + sqrt 2)
Where 'a' is the side length.
A = 2 * 10^2 * (1 + sqrt 2)
A = 2 * 10^2 * 2.41421356
A = 2 * 100 * 2.41421356
A = 200 * 2.41421356
A = 482.842712
Therefore, the closest one is C.
X=2 so the value of x+5 is 7
Answer:
15.2%
Step-by-step explanation:
There are 12 marbles in total and there are 5 red marbles, so the probability of getting a red marble is 5/12. There are now 11 marbles and there are 4 blue marbles. So the probability of getting a blue marble is 4/11.
You multiply these 2 values together.
5/12 * 4/11 = 20/132 = 0.1515
This is about 15.2%
To find Kevin's age, subtract 17 by 3 to find how old Kevin is, which is 7. Then, to find Uncle rob's age, add 17 plus 3 to get 20, then multiply that by 3 to see how old Uncle Rob will be, which is 60.Then, subtract 6 from 60 to get 54.The final answer is that Kevin is 7 years old, and Uncle Rob is 54 years old. Hope this helps!
