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ser-zykov [4K]
3 years ago
7

Use the graph to solve the system of linear equations. x+y=5 y – 2x = -4

Mathematics
1 answer:
Romashka [77]3 years ago
3 0
Y=-x+5
Y=2x-4
X would be your slope
Y intercepts would be (0, 5) , ( 0,-4)
Formula i used was Y=Mx+B
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If f(x)=-2x-3 find the value f(4y)
jasenka [17]

Answer:

f(4y) = -8y - 3

Step-by-step explanation:

Step 1: Define variables

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Problem 1.(32 points) A random sample of 100 Uber rides in Chicago has on average 5.4miles per ride. Assume the distribution of
marshall27 [118]

Answer:

a) CI = ( 5,1 ; 5,7 )

b) SE =  0,1  

Step-by-step explanation:

a) Sample random     n  = 100

Mean  =  μ = 5,4

Standard deviation   s = 1,3

CI = 99 %    α = 1 %   α = 0,01     α/2 =  0,005

z(c) for  0,005 is from z-table    z(c)  = 2,575

z(c)  =  ( X - μ ) /s/√n          CI  =  μ ± z(c) * s/√n

CI =  5,4 ± 2,575* 1,3/10

CI = 5,4 ± 0,334

CI = ( 5,1 ; 5,7 )

b) SE = Standard deviation / √n

SE = 1,3 /10       SE =  0,1  

We can support that with 99 % of probability our random variable will be in the CI.

6 0
2 years ago
...........................
Brrunno [24]

Answer:

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Step-by-step explanation:

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3 years ago
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