That's easy you just need to listen in school to answer it
Answer:
B) Independent; the 1st marble selection will not affect the 2nd marble selection.
Step-by-step explanation:
When finding the probability of events in mathematics, we have both independent and dependent events.
Independent events are events that occur when the results of selection of the first events does not affect the results or outcomes of the second events.
Dependent events are the opposite of Independent events. They are events that occur when the results or outcomes obtained from the second events is affected by the results or outcomes from the selection of the first events.
From the question, we can see that the first event is she picked one marble from the bag. The second event is she replaced the marble before picking another marble. By doing this, the total number of possible outcomes for the probabilities of both events remains the same and they are unaffected.
Therefore, we can say that the two events are Independent because the 1st marble selection will not affect the 2nd marble selection.
X should be 3,
because 8x means 8 times what number.
So 8x must be 3.
8 times 3 = 24. 24 +5 = 29.
Hope you Understand :) !
Answer: The height of the pole is 175.97 ( approx )
Step-by-step explanation:
Let the height of the pole is x cm,
Also, let the angle of elevation of the sun to the pole at 3 pm is 
Thus, by the question,
( at 3pm the height of shadow = height of the pole)
Again, according to the question,
When the angle of elevation is 
,
The height of shadow = x + 95,
Answer:
A for first one and C
Step-by-step explanation:
