2+2=4
You start with 2 and add an additional 2 to that. You now have 4.
I hope that helps!!!!!!
: )
Answer -
Step-by-step explanation:
Answer:
(a) Shown below.
(b) Shown below.
(c) The probability that a person does not learn Spanish is 0.18.
(d) The probability that method B was used given that a student learned the Spanish successfully is 0.83.
Step-by-step explanation:
(a)
Consider the provided data.

Then the probability of not learning Spanish using the respective methods are:

(b)
The Probability Tree representing each of the probabilities mentioned above is attached below.
(c)
Compute the probability that a person does not learn Spanish as follows:


Thus, the probability that a person does not learn Spanish is 0.18.
(d)
Compute the probability that method B was used given that a student learned the Spanish successfully as follows:


Thus, the probability that method B was used given that a student learned the Spanish successfully is 0.83.
Answer:
6 cookies
Step-by-step explanation:
himself + 6 friend = 7
(17+25)/7
= 42/7
= 6
Each friende get:
6 cookies
The ratio is 4/9<span>.
Area = n (s/2)^2 / tan(</span><span>π /n)</span>