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vredina [299]
3 years ago
6

Please help meee I need this by today please help me hellpppp

Mathematics
2 answers:
AfilCa [17]3 years ago
5 0

Answer:

4.

A. 3x + 1.50y the variables are x and y

B. If x = 73 wristbands and 47 buttons then:

3(47) + 1.50(47)

141 + 70.5 = 211.5

Step-by-step explanation:

Igoryamba3 years ago
4 0
4.
A. 3x + 1.50y the variables are x and y
B. If x = 73 wristbands and 47 buttons then:
3(47) + 1.50(47)
141 + 70.5 = 211.5
There you go!!
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For i≥1 , let Xi∼G1/2 be distributed Geometrically with parameter 1/2 . Define Yn=1n−−√∑i=1n(Xi−2) Approximate P(−1≤Yn≤2) with l
murzikaleks [220]

Answer:

The answer is "0.68".

Step-by-step explanation:

Given value:

X_i \sim \frac{G_1}{2}

E(X_i)=2 \\

Var (X_i)= \frac{1- \frac{1}{2}}{(\frac{1}{2})^2}\\

             = \frac{ \frac{2-1}{2}}{\frac{1}{4}}\\\\= \frac{ \frac{1}{2}}{\frac{1}{4}}\\\\= \frac{1}{2} \times \frac{4}{1}\\\\= \frac{4}{2}\\\\=2

Now we calculate the \bar X \sim N(2, \sqrt{\frac{2}{n}})\\

\to \frac{\bar X - 2}{\sqrt{\frac{2}{n}}}  \sim  N(0, 1)\\

\to \sum^n_{i=1}  \frac{X_i - 2}{n}  \times\sqrt{\frac{n}{2}}}  \sim  N(0, 1)\\\\\to  \sum^n_{i=1}  \frac{X_i - 2}{\sqrt{2n}}  \sim  N(0, 1)\\

\to Z_n = \frac{1}{\sqrt{n}} \sum^n_{i=1} (X_i -2) \sim N(0, 2)\\

\to P(-1 \leq X_n \leq 2)  = P(Z_n \leq Z) -P(Z_n \leq -1) \\\\

                               = 0.92 -0.24\\\\= 0.68

6 0
3 years ago
Use the zero product property to find the solutions to the equation x^2-15x-100=0
Helen [10]

Answer:

It’s c

Step-by-step explanation:

5 0
3 years ago
a rectangular prism has a volume of 1374.28 cubic inches.The prism is 9.4 inches wide and 17.2 inches long.What is the height of
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The volume V of a prism can be found by:
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V=lwh
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The height can be found by rearranging the equation to:
h= \frac{V}{wl}

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1374.28/161.68= 8.5 inches is the height of the prism.
6 0
3 years ago
Please help me asap :) thank you
Mashutka [201]

Answer:

1 1/2 points

Step-by-step explanation:


3 0
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There are 8 competitors in each ring for a tae kwon do tournament. If there are 96 competitors in the tournament, how many rings
Marysya12 [62]
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