The correct answer is option A.
Conditional Probability means the probability of an event given that some other event has already occurred. From the given options, only option A presents such a case in which we have to find the probability of an event along with the data that some other event has already occurred.
We have to find the probability of drawing out a club, given that the card we are drawing is not a heart. So, it is given that the shape on the card is a shape other than the heart. Thus the probability we will calculate will be a conditional probability.
Answer:
42.66666667
Step-by-step explanation:
I did it in my calculator
Answer:
D) 12
Step-by-step explanation:
3x+x=2x+24
4x=2x+24
4x-2x=24
2x=24
x=24/2
x=12
Answer:
3:20
Step-by-step explanation:
4:25-15= 4:10
4:10-20=3:50
3:50-30=3:20
School ended at 3:20
Answer: The ball hits the ground at 5 s
Step-by-step explanation:
The question seems incomplete and there is not enough data. However, we can work with the following function to understand this problem:
(1)
Where 
models the height of the ball in meters and 
the time.
Now, let's find the time when the ball Sara kicked hits the ground (this is when 
):
(2)
Rearranging the equation:
(3)
Dividing both sides of the equation by 
:
(4)
This quadratic equation can be written in the form 
, and can be solved with the following formula:
(5)
Where:
Substituting the known values:
(6)
Solving we have the following result:
This means the ball hit the ground 5 seconds after it was kicked by Sara.
