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Gekata [30.6K]
3 years ago
15

Find the value of x.

Mathematics
1 answer:
madreJ [45]3 years ago
3 0

Answer:

40

Step-by-step explanation

x=40 because if you time these in like this:

3(40)-10= 110

40+15=55

If you user 65 it'll be wrong because:

3(65)-10=185    

And the whole thing is only 180 :]

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QUESTION 8
zlopas [31]

The probability that twenty customers will visiting Target stores will be 0.0007979.

<h3>How to calculate the probability?</h3>

Your information is incomplete but the question will be solved based on the available information.

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7 0
2 years ago
A human resource manager wants to see if there is a difference in the proportion of minority applicants who get the job and the
mash [69]

Answer:

Error Bound = 0.04

Step-by-step explanation:

Whenever we want to estimate parameter from a subset (or sample) of the population, we need to considerate that your estimation won't be a 100% precise, in other words, the process will have a random component that prevents us from always making the exact decision.

With that in mind, the objective of a confidence interval is to give us a better insight of where we expect to find the "true" value of the parameter with a certain degree of certainty.

The estivamative of the true difference between proportions was -0.19 and the confidence interval was [-0.23 ; -0.15].

The question also defines the error bound, as the right endpoint of the confidence interval minus the sample mean difference, so it's pretty straight foward:

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The interpretation of this would be that we expect that the estimative for the difference of proportions would deviate from the "true" difference about \pm 0.04 or 4%.

6 0
3 years ago
Convert 0.70 hours to minutes. Round answers to the nearest tenth.
Dmitrij [34]

Answer:

B. 42 Mins

Step-by-step explanation:

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3 0
3 years ago
Please help me in here. And thx for da ' help
Ivanshal [37]
No there isn’t enough water, 975 divided by 70 is 13.92 indicating there would only be enough water for 13 experiments and not 15
6 0
3 years ago
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