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Luda [366]
4 years ago
14

Help me please thanks

Mathematics
1 answer:
balu736 [363]4 years ago
6 0

Answer:

x < (with the line at the bottom) -2. So the third answer choice.


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A research scientist wants to know how many times per hour a certain strand of bacteria reproduces. The mean is found to be 10.3
user100 [1]

Answer:

Confidence interval for the true mean number of reproductions per hour for the bacteria is (10.1,10.5).

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 10.3

Population standard deviation, σ = 2.1

Sample size, n = 728

Alpha, α = 0.01

Confidence interval:

\mu \pm z_{critical}\frac{\sigma}{\sqrt{n}}

Putting the values, we get,

z_{critical}\text{ at}~\alpha_{0.01} = \pm 2.58

10.3 \pm 2.58(\frac{2.1}{\sqrt{728}} ) = 10.3 \pm 0.2008 = (10.0992,10.5008) \approx (10.1,10.5)

6 0
3 years ago
Geometry help. the options are Always, sometimes, and never
slega [8]
The answer would be never.

A geometric plane unless stated finite goes on forever meaning that when two planes intersect, it could never be at a point since they cannot intersect point to point or point to side or side to side.
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3 years ago
The equation of the line graphed below is <br> . Do not include spaces in your answer.
labwork [276]
Whynottincludewpace
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3 years ago
If I have 35 cups of water with 18 bacthes of green slime be enough
Anestetic [448]

Answer:

no because you will have a lot of cups left over.

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What is the rule for calculating |x| for any value of x?
padilas [110]
Anything with || around it is a whole value. It’s always a positive. For example, |-56|=56. Now, if the negative was on the outside, it would be a negative like so; -|10| =-10
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