H=0
Therefore:
144t-16t²=0
t (144-16t)=0
We have two equations:
1)
t=0 (when the ball is released)
2)
144-16t=0
-16t=-144
t=-144 / -16=9 (this is the time )
Answer: the ball hit the ground in 9 s.
Answer:
rewrwefe
Step-by-step explanation:
FFewF
Answer:
Step-by-step explanation:
GIVEN: In the 
school year in country A, there were 
foreign students from country B. This number is 
more than the number of students from country C.
TO FIND: How many foreign students were from country C.
SOLUTION:
Total foreign students from country B 
let the foreign students from country C be 
As the students from country B is more than the country C
Students from country B
Hence the number of students from country C are 
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Answer:
There is a 33.3% chance you will pull a red marble after pulling a blue one.
Step-by-step explanation:
There are a total of 10 marbles in the sack. A blue marble is removed from the bag without being replaced, leaving 9 in the sack. 3 of the marbles left are red. To find the probability of pulling a red marble, we divide the number of red marbles by the number of total marbles.
3/9 = 1/3 = 0.333 = 33.3%
