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Lyrx [107]
2 years ago
6

Pleaseeee help me!!!

Mathematics
1 answer:
irina1246 [14]2 years ago
3 0

Answer:

i have no idea just letting you know

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2nd one. identify the slope.
creativ13 [48]

Answer:

m = 4 / 5

Step-by-step explanation:

first coordinate : (0,-4)

second coordinate: (5,0)

The formulae for the slope : m=(y2-y1)/(x2-x1)

Substituting,

m = (0 - (-4)) / (5 - 0)

m = 4 / 5

If this help you, please mark brainliest!

5 0
2 years ago
A television news program asks its viewers to call in to give their opinions on an upcoming ballot question. What type of sampli
Alla [95]

Answer:

This is an example of self selecting sampling

Step-by-step explanation:

This is an example of self selecting sampling because the news program is asking viewed to give their opinions. The viewers themselves have a choice of participating in the sample therefore is self selecting.

4 0
2 years ago
Transform the following into equations:
expeople1 [14]
First you add up al the original prices which is 2.50, 4.95, and 6.00 and you should get 13.45
 Then you would do 13.45 times 20 and you should get 269 and now you divide 269 by 100 and that would be 2.69 and thats 20% off now take 13.45 your total subtracted by your 20% off which is 2.69 and you would get 10.76 and thats your total...... : / hope that helps

3 0
3 years ago
What is the common difference between consecutive terms in the following arithmetic sequence? 51, 47, 43, 39, ...
andriy [413]

Answer:

tHE ANSWER IS -4 (B) BECAUSE YOU ARE TAKING AWAY FROM THE POSITIVE VALUE AND WORKING IN DESCENDING ORDER.

Step-by-step explanation:


7 0
2 years ago
Read 2 more answers
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
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