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timofeeve [1]
2 years ago
6

1. What is the 90th percentile if the sample size is 11?

Mathematics
1 answer:
DedPeter [7]2 years ago
3 0
The answer should be D. I believe so
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Please please help me
Gekata [30.6K]

Answer:

\large\boxed{\dfrac{\boxed{8}}{81}}

Step-by-step explanation:

\text{If}\ a_1,\ a_2,\ a_3,\ a_4,\ ...,\ a_n\ \text{is the geometric sequence, then}\\\\\dfrac{a_2}{a_1}=\dfrac{a_3}{a_2}=\dfrac{a_4}{a_3}=...=\dfrac{a_n}{a_{n-1}}=constant=r-\text{common ration}.\\\\\text{We have}\ \dfrac{1}{2},\ \dfrac{1}{3},\ \dfrac{2}{9},\ \dfrac{4}{27},\ ...\\\\\dfrac{\frac{1}{3}}{\frac{1}{2}}=\dfrac{1}{3}\cdot\dfrac{2}{1}=\dfrac{2}{3}\\\\\dfrac{\frac{2}{9}}{\frac{1}{3}}=\dfrac{2}{9}\cdot\dfrac{3}{1}=\dfrac{2}{3}\\\\\dfrac{\frac{4}{27}}{\frac{2}{9}}=\dfrac{4}{27}\cdot\dfrac{9}{2}=\dfrac{2}{3}

\bold{CORRECT}\\\\\dfrac{x}{\frac{4}{27}}=\dfrac{2}{3}\qquad\text{multiply both sides by}\ \dfrac{4}{27}\\\\x=\dfrac{2}{3}\cdot\dfrac{4}{27}\\\\x=\dfrac{8}{81}

8 0
3 years ago
Quadrilateral A has side lengths 3, 4, 5, and 6. Quadrilateral B is a scaled copy of
Elden [556K]

Answer:

best bet is a im not 100 percent sure though

6 0
3 years ago
W + 4 = 16<br> Need for a test
Nady [450]

Answer:

12

Step-by-step explanation:

when + go to the other side it has to be -

w=16-4

=12

7 0
3 years ago
Read 2 more answers
Which inequality statement best represents the graph below?
lbvjy [14]
Graph A is correct.  The ≥ sign is correct because the gray area is above the red.  x^2 has a positive coefficient which corresponds to the opening-up parabola.
7 0
3 years ago
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Which graph represents f(x)=4⋅5x ?
vovangra [49]

Answer:

5

Step-by-step explanation:

5

8 0
3 years ago
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