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Nikitich [7]
3 years ago
10

How to find percentile rank

Mathematics
1 answer:
GuDViN [60]3 years ago
6 0
<span>See this formula in more detail in the Examples section. Formula: To find the percentile rank of a score, x, out of a set of n scores, where x is not included:Example: If Jason graduated 25th out of a class of 150 students, then 125 students were ranked below Jason.</span><span>

Percentiles - Regents Exam Prep Center is were i for my information for you

</span>
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Please help and show work
Nitella [24]
For the triangles to be congruent

x=y+5 .......(substitute in the second equation)

x+3=3y.........(y+5) + 3 = 3y , 2y = 8 ,

y = 4 , x = 9


3 0
3 years ago
Simplify (2 + 3)3 + 2 + 33
Brut [27]

(2+3)3+2+33

(5)3+2+33

15+2+33

50

4 0
4 years ago
Read 2 more answers
Irene is going to read a 216-page book. If she reads at a rate of 18 pages per day, how many days will it take her to read 1/3 o
Molodets [167]
It will take her 4 days to read 1/3 of the book.

The answer is 4.
3 0
4 years ago
Read 2 more answers
Use cubic regression to find a function that fits the following points.
olasank [31]

Answer:

The cubic regression that fits the points (x,y) =(-2,-16), (x,y) = (1,5), (x,y) = (3, 59) and (x,y) =(6,440) is y =2\cdot x^{3}+x+2.

Step-by-step explanation:

A cubic polynomial is a polynomial that has the following form:

y = a\cdot x^{3}+b\cdot x^{2}+c\cdot x + d (1)

Where:

x - Independent variable, dimensionless.

y - Dependent variable, dimensionless.

a, b, c, d - Coefficients, dimensionless.

We construct the following system of equations to determine the coefficients of the cubic regression:

(x,y) =(-2,-16)

-8\cdot a +4\cdot b -2\cdot c + d = -16 (1)

(x,y) = (1,5)

a+b+c+d= 5 (2)

(x,y) = (3, 59)

27\cdot a + 9\cdot b + 3\cdot c + d = 59 (3)

(x,y) =(6,440)

216\cdot a + 36\cdot b + 6\cdot c + d = 440 (4)

The solution of the system of linear equations is:

a = 2, b = 0, c = 1, d = 2

The cubic regression that fits the points (x,y) =(-2,-16), (x,y) = (1,5), (x,y) = (3, 59) and (x,y) =(6,440) is y =2\cdot x^{3}+x+2.

7 0
3 years ago
If 52 cups of water were used in a Merry Berry Fruit Punch, how many cups of concentrate would also be used?​
BigorU [14]

May I ask what the ratio is? *Comment it below this post and i'll help you!* <3

7 0
4 years ago
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