Answer:
a) 122.5 m ; b) 10 s
Step-by-step explanation:
Just use the given equation and plug in what you know.
a)
d = 4.9t^2
d = 4.9(5^2)
d = 4.9 * 25
d = 122.5 m
b)
d = 4.9t^2
490 = 4.9t^2
100 = t^2
t = 10 s
Answer: the answer is CD is half the length of CD
Step-by-step explanation:
Using probability of independent events, it is found that the probabilities are:
- a)
- b)
- c)
- d)
<h3>
Independent Events:</h3>
- For multiple independent events, the probability of all happening is the multiplication of the probability of each happening.
In this problem:
- One guess is taken from a set of 5 elements, hence the probability of a correct guess is:
And the probability of an incorrect guess is:
Item a:
Item b:
C and I are independent events, hence:
Item c:
Item d:
You can learn more about independent events at brainly.com/question/21763634