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Semenov [28]
3 years ago
5

Please explain me and tell me the right answer.

Mathematics
1 answer:
Shkiper50 [21]3 years ago
4 0
Basically, it asks you to find the piece of data that is 1/10th of the overall shoe sales on a given day. As the number of shoes sold per day is 400, the piece of data you are looking for is 40. Meaning the answer is 'High heels sold on Friday'
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A flooring company produces tile in batches of 36. when performing a quality-control analysis, the company tests 4 pieces of til
Nimfa-mama [501]
9.26% 
total tiles 36,
4 will be test so probability of testing 4/36
non defective =30

probability of testing non defective 4/36 x 30/36 x 100=
9.26%
3 0
3 years ago
Which points are on a graph where y varies directly with x and y = 3 when x = -3
kondor19780726 [428]

A coordinate system is a method of determining the position of points or other geometric components on a manifold. The points which vary are on a graph where y varies directly with x are (-1, 1), (0, 0), and (-5, 5).

<h3>What are coordinates?</h3>

A coordinate system is a method of determining the position of points or other geometric components on a manifold, such as Euclidean space, by using one or more integers, or coordinates.

Given that y varies directly with x, therefore, we can write,

y∝x

y = kx

Also, y=3 and x=-3, therefore, the value of k can be written as,

3=k(-3)

k=-1

Now, the points which vary are on a graph where y varies directly with x are (-1, 1), (0, 0), and (-5, 5).

Learn more about Coordinates:

brainly.com/question/23450276

#SPJ1

3 0
2 years ago
Find the value of x, please helppp
Ratling [72]

Answer:

x = 3

Step-by-step explanation:

The two triangles at the left have the same angles and share a side, so they are congruent.  Therefore, the vertical side is also 6x−2.

Using the same logic, the two triangles on the right have the same angles and share a side, so they are congruent.  Therefore, the vertical side is also 9x−11.

So:

6x − 2 = 9x − 11

9 = 3x

x = 3

5 0
3 years ago
Think you guys and help a fellow master out? Ill give brain list and 50 points.
docker41 [41]

Answer:

He transferred 2 6/7 songs in 1 2/3 minutes.

3 0
2 years ago
Read 2 more answers
The length of time, M hours that a phone battery will work before it needs recharging is normally distributed with a mean of 90
salantis [7]

Answer:

The interquartile range is between 83.25 hours and 96.75 hours

Step-by-step explanation:

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 90, \sigma = 10

Find the interquartile range for this distribution.

That is, the middle 50%, from the 25th to the 75th percentile.

25th percentile:

X when Z has a pvalue of 0.25. So X when Z = -0.675

Z = \frac{X - \mu}{\sigma}

-0.675 = \frac{X - 90}{10}

X - 90 = -0.675*10

X = 83.25

75th percentile:

X when Z has a pvalue of 0.75. So X when Z = 0.675

Z = \frac{X - \mu}{\sigma}

0.675 = \frac{X - 90}{10}

X - 90 = 0.675*10

X = 96.75

The interquartile range is between 83.25 hours and 96.75 hours

7 0
2 years ago
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