I have finished doing my calculations and i think my answer may be correct but i got 6
10•20•15= 3,000. 15•20•10= 3,000. 3,000+3,000= 6,000. The volume is 6,000 cubic centimeters.
Answer:
Therefore the probability of getting both blue marbles is
.
Step-by-step explanation:
Probability : The ratio of favorable outcomes to the total outcomes.
Given that a bag contains 7 marbles which are red in color, 2 marbles which are blue in color and 3 marbles which are green in color.
Total number of marbles = (7+2+3) = 12
The probability of getting a blue on first drawn is



Now the number of blue marbles = (2-1)= 1 [ since 1 blue marbles is drawn]
Total number of marbles = (12-1) =11
The probability of getting a blue marble on second drawn is


Therefore the probability of getting both blue marbles is


Answer: B.
.
Step-by-step explanation:
Given : Number of blue disks =4
Number of green disks = 8
Total disks = 12
Total number of combinations of drawing any 3 disks from 12 = 
Number of combinations of drawing 1 blue and 2 green disks = 
Now , the probability that 1 of the disks selected is blue, and 2 of the disks selected are green will be :

Hence, the correct answer is B.
.
Answer: x-6
Explanation: x^2 is a DOTS, or difference of two squares. 36 is a perfect square and x^2 is a perfect square, and you are finding the difference. Therefore, you can do (x+6)(x-6). This works with any number. If there was x^2-16, it could be factored to (x+4)(x-4)