Answer:
P of white: 0.26
P of green: 0.39
Step-by-step explanation:
Assume the probability of a white pin is p.
Then the probability of a green pin is (3/2)p because their ratio is 3:2.
The sum of the probabilities must be 1.
0.1+(3/2)p+0.25+p=1
(5/2)p+0.35=1
(5/2)p=0.65
p=(2/5)(0.65)=0.26
(3/2)p=0.39
Answer:
The surface area is the area that describes the material that will be used to cover a geometric solid. When we determine the surface areas of a geometric solid we take the sum of the area for each geometric form within the solid. The volume is a measure of how much a figure can hold and is measured in cubic units.
Step-by-step explanation:
if you wonder why we multiplied by the LCD of 4, is just to do away with the denominators.
Answer:
y=-2x+4
Step-by-step explanation:
Answer:
D 7
Step-by-step explanation:
Total no. of bulb= 5
no. of defected bulb= 3
no. of not defected bulb=2
Total no. of bulb combination = 5C2
=5!/2!(5-2)!
= 5!/2!3!
= 5×4×3×2×1/2×1×3×2×1
=120/12
=10
( since a room can be lighted with one bulb also)
total no. of bulb combination when room shall not light = 3C2
3!/2!(3-2)!
= 3!/2! 1!
= 3×2×1/2×1×1
= 6/2
=3
Now,
Total no. of trial when room shall light
=10-3
=7
Hence, number of trial when the room shall be lighted is 7 which is option d