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lorasvet [3.4K]
3 years ago
12

Write an equation of the line that passes through a pair of points (-5, -2) (3, -1)

Mathematics
1 answer:
Bess [88]3 years ago
5 0

Answer:

y = 0.125x + -1.375

Step-by-step explanation:

You can try and use desmos.com to help you graph these 2 points. My algebra teacher recommended it if you don't have a physical graphing calculator!

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Solve for r.<br><br> 27r = 783
Ksju [112]

Answer:29

Step-by-step explanation:

27r=783

   divide both sides by 27

 27r÷27=783÷27

         r=29

6 0
3 years ago
Read 2 more answers
Express p/q form of 0.375​
expeople1 [14]

Answer:

15/40

Step-by-step explanation:

0.375 =  \frac{375}{1000}  \\  \\  =  \frac{15}{40}

5 0
3 years ago
According to a study conducted by the Toronto-based social media analytics firm Sysomos, of all tweets get no reaction. That is,
Svetllana [295]

Answer:

a) E(X) = 71

b) V(X) = 20.59

Sigma = 4.538

Step-by-step explanation:

<em>The question is incomplete:</em>

<em>According to a 2010 study conducted by the Toronto-based social media analytics firm Sysomos, 71% of all tweets get no reaction. That is, these are tweets that are not replied to or retweeted (Sysomos website, January 5, 2015). </em>

<em> Suppose we randomly select 100 tweets. </em>

<em>a) What is the expected number of these tweets with no reaction? </em>

<em>b) What are the variance and standard deviation for the number of these tweets with no reaction?</em>

This can be modeled with the binomial distribution, with sample size n=100 and p=0.71, as the probability of no reaction for each individual tweet.

The expected number of these tweets with no reaction can be calcualted as the mean of the binomial random variable with these parameters:

E(X)=n\cdot p=100\cdot 0.71=71

The variance for the number of these tweets with no reaction can be calculated as the variance of the binomial distribution:

V(X)=np(1-p)=100\cdot0.71\cdot0.29=20.59

Then, the standard deviation becomes:

\sigma=\sqrt{V(X}=\sqrt{20.59}=4.538

5 0
3 years ago
How do you evaluate using the value given ? <br> y+z•2;use y = 1 , and z = 2
natita [175]
Plug in the values of y and z in the equation the answer would be 5
4 0
3 years ago
What can you use to prove ABE = CDE
zimovet [89]

Answer:

its ASA

Step-by-step explanation:

can someone please answer my question from my profile?

8 0
3 years ago
Read 2 more answers
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