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just olya [345]
3 years ago
11

Which expressions are equal to z+(z+6)

Mathematics
2 answers:
kumpel [21]3 years ago
7 0

Answer:

2(z+3)

Step-by-step explanation:

2z+6

take out the 2: 2(z+3)

RideAnS [48]3 years ago
5 0

Answer:

this is your answer

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The answer and work is in the SS below

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devlian [24]

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The y intercept is 0 and 3

Step-by-step explanation:

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You measure the lifetime of a random sample of 25 rats that are exposed to 10 Sv of radiation (the equivalent of 1000 REM), for
Slav-nsk [51]

Answer:

CI 95%(μ)= [13.506 ; 14.094]

Step-by-step explanation:

The confidence interval (CI) formula is:

CI (1-alpha) (μ)= mean+- [(Z(alpha/2))* σ/sqrt(n)]

alpha= is the proportion of the distribution tails that are outside the confidence interval. In this case, 5% because 100-90%

Z(5%/2)= is the critical value of the standardized normal distribution. In this case is 1.96

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mean= 13.8 days

n= number of observations . In this case 25

Then, the confidence interval (90%) is:

CI 95%(μ)= 13.8+- [1.96*(0.75/sqrt(25)]

CI 95%(μ)= 13.8+- [1.96*(0.75/5) ]

CI 95%(μ)= 13.8+- (0.294)

CI 95%(μ)= [13.8-0.294 ; 13.8+0.294]

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4 0
3 years ago
Here is the histogram of a data distribution. What is the shape of this distribution.
tankabanditka [31]

Answer:

Hey there!

I think your answer would be unimodal skewed. This graph only has one maxima, thus it can't be bimodal. However, it's not symmetric, meaning that it is skewed.

Hope this helps :)

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NeX [460]

Answer:

1080

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2 years ago
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