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2 years ago

Which of the following inequalities matches the graph?

Mathematics

2 answers:

Dovator [93]2 years ago

3 0

I believe it x -7
It's on the X axis, and the point is -7

I hope i'm correct and that this helps you :D

Irina18 [472]2 years ago

3 0

Answer:

B. $x\leq -7$

Step-by-step explanation:

We have been given a graph and we are asked to find the inequality that is represented by our given graph.

We can see from our graph that at x equals -7 we have a vertical line and the shaded part of graph is under x equals -7.

As we have a solid line at x equals -7, so this means that our inequality includes -7. So the shaded part of graph represents the x values less than or equal to -7.

We can represent this information in an inequality as:

$x\leq -7$

Therefore, the inequality $x\leq -7$ matches with our given graph and option B is the correct choice.

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kondor19780726 [428]

Answer: The number of different combinations of 2 vegetables are possible = 15 .

Step-by-step explanation:

In Mathematics , the number of combinations of selecting r values out of n values = $^nC_r=\dfrac{n!}{r!(n-r)!}$

Given : Number of available vegetables = 6

Then, the number of different combinations of 2 vegetables are possible will be :

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Hence , the number of different combinations of 2 vegetables are possible = 15 .

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2 years ago

A 90% confidence interval for a population parameter means that if a large number of confidence intervals were constructed from

Elis [28]

Answer:

The correct option is a) True

Step-by-step explanation:

Consider the provided statement.

A 90% confidence interval for a population parameter means that if a large number of confidence intervals were constructed from repeated samples, then on average, 90% of these intervals would contain the true parameter

First understand what is 90% confidence interval.

The level of confidence describes the uncertainty associated with a method of sampling.

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From the above definition of confidence level we can concluded that the provided statement is true.

Hence, The correct option is a) True

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2 years ago

pogonyaev

Answer:

Step-by-step explanation:

24/4 = 6 so....

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2 years ago

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A pitcher of water at 40 degrees Fahrenheit is placed into a 70 degree room. One hour later, the temperature has risen to 45 deg

solong [7]

Answer:

3 hours

Step-by-step explanation:

The difference between the initial temperature and the temperature after an hour is an increase of 5 degrees. Since we need to calculate the time it would take for the temperature to rise to 60 degrees we need to find the difference in degrees from the current temperature to 60 degrees.

60 - 45 = 15 degrees

Since 1 hour equals an increase of 5 degrees we need to divide 15 by 5 to calculate how many hours before the temperature increases to 60 degrees

15 / 5 = 3 hours

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1 year ago

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ivolga24 [154]

Answer: 4.4

Step-by-step explanation:

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2 years ago