You have 4 marbles and you can get 3 combinaisons of two marbles for each one.
So 4*3 = 12.
There are 12 outcomes. The answer would be D.
Hope this helps !
Photon
Answer:
P(A) = 0.1620 , P(A|B) = 0.0707
Step-by-step explanation:
Total people = 10 + 15 + 20 = 45 , Sophomores = 10, Juniors = 15 , Seniors = 20
P(A) , exactly 3 juniors selected = (15 c 3) (30 c 2) / (45 c 5) = (455 x 435) / 1221759 = 0.1620
P (B) , exactly 2 seniors selected = (20 c 2) (25 c 3) / (45 c 5) = (190 x 2300)/ 1221759 = 0.3576
P(A|B), exactly 3 juniors & exactly 2 seniors selected = P (A∩B) / P (B)
(15 c 3) (20 c 2) / (45 c 5) = (455 x 190) / 1221759 = 0.0707
Your question is difficult to understand, that is why I am going to edit your question as follow:
<u>Edited Question:</u>
Cone A and B both have a volume of 48π Cubic units but have different dimensions. Cone A has a radius=6 units and a height=4 units.
Find the one possible radius and height for cone B be to have the same volume as cone A.
Answer:
Radius of cone B= 6units
Height of cone B=units
Step-by-step explanation:
As we know the formula for the volume of a cone is
If volume of A and Volume B is given as same, thus
comparing equations above, we get
Thus, Radius of cone A=6units
and
Height of cone B= 4units
20x+29 Parenthesis are supposed to be solved first, but due to the variable (x) i multiplied 5 (distributive property) leaving the 9 alone ... you just add it to the equation .....which you can't find x because you don't know what the whole equation equals to.