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Answer:
The expected number of people you must meet until you encounter the first person of Hawaiian ancestry in the village of Nanakuli is 3.3
Step-by-step explanation:
For each person, there are only two possible outcomes. Either they are of Hawaiian ancestry, or they are not. The probability of a person being of Hawaiian ancestry is independent of any other person. So we use the binomial probability distribution to solve this question.
Binomial probability distribution:
The expected number of trials to find r sucesses, with p propability, is given by:
30% of the residents are of Hawaiian ancestry.
This means that
What is the expected number of people you must meet until you encounter the first person of Hawaiian ancestry in the village of Nanakuli?
This is E when r = 1. So
The expected number of people you must meet until you encounter the first person of Hawaiian ancestry in the village of Nanakuli is 3.3
Answer:
240 ft^2
Step-by-step explanation:
If you know you have 6 triangles then you can just find the area of one and then multiply by 6. First find your formula: (b)(h)/ 2
Next plug in: (8)(10)/2 = 40
Now you know the area of one so multiply by 6: (40)(6) = 240 ft^2
Answer:
x = 10, y = -10
Step-by-step explanation:
x + y = 0
4x + 3y = 10
To solve with substitution, we must solve one equation for a variable, then plug that into the other equation:
x + y = 0
x = -y
------
4x + 3y = 10
4(-y) + 3y = 10
-4y + 3y = 10
-y = 10
y = -10
Then we can plug the value of "y" into the first equation:
x + y = 0
x + (-10) = 0
x = 10
This is a test of even or odd function
if it is even it is symmetric with respect to y axis
means if we replace x with -x, we should get the same thing
in an even function, f(x)=f(-x)
so
a. if we replace x with -x we get y=x^5, not the same function
b. if we replace x with -x, we get 3x^6, same thing
c. replace to get -2x^7
d. replace and get 2x^3
B is answer
notice that the even powers canclel out the positive so normally even functions have even degrees
B is answer