Answer:
2/5
Step-by-step explanation:
Answer: It Diego i think please don’t be mad at me if you get it wrong
Answer:
c. you reject a null hypothesis that is true
Step-by-step explanation:
We need to remember the following concepts
Error type I: Is an error associated to the probability of reject a null hypothesis when it is actually true
Error type II: Is an error associated of not rejecting a null hypothesis when the alternative hypothesis is the true
And the best answer for this case would be:
c. you reject a null hypothesis that is true
The final velocity is 13.5m/s
The formula of velocity is given as:
And the parameters are given as:
- the initial velocity, u = 3 m/s
- the acceleration, a = 1.5 m/s²
- the time, t = 7 seconds
So, we have:
Hence, the final velocity is 13.5m/s
Read more about velocity at:
brainly.com/question/4931057
Step-by-step explanation:
It is given that,
Initial speed of the stone, u = 170 ft/s
It is thrown down from a height of 1020 feet.
We need to its height after t seconds. It can be calculated using second equation of kinematics as follows :
h₀ is initial height, u = -170 ft/s as the stone is throwing down and g = -32ft/s²
Putting values, we get :