Surface area of the cylinder = 2 pi r * 40 = 2 pi * 3* 40 = 24 pi
of the cone this is pi * 3 * 5 = 15pi
of the hemisphere this is 1/2 * 4 * pi * 3^2 = 18pi
So the answer is 24pi + 15pi + 18pi = 57pi = 178.98 cm^2
The second choice is the answer
Answer:
1.25 seconds
Step-by-step explanation:
.25
.25
.25
.25
+.25=1.25 seconds
Answer:
3rd choice
Step-by-step explanation:
The domain is (-infinity, infinity) because you can keep subtracting multiples of 360 until you get a value under 360. For the range, imagine a unit circle.
The y coordinate is the sin value, so it is just [-1, 1].
So the answer is the 3rd choice.
Answer:
D is the correct option
Step-by-step explanation:
The roulette can land in any possibly slot and their are 38slots
i.e the total possible event is 38
Green slot = 2
Red slot =18
Black slot =18
P(G)=2/38 =1/19
P(R)=18/38=9/19
P(B)=18/38=9/19.
The roulette will be spun twice and they are independent i.e. the occurrence of one event does not affect the occurrence of the other.
We are looking for the probability of red first and probability of black
P(R n B)=P(R)P(B), since they are independent
P(R n B)=9/19×9/19
P(R n B)= 0.2244
D is the correct option
