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3 years ago

A factory produces 2985 bulbs in a day. how many bulbs did it produce in that year.

Mathematics

2 answers:

anastassius [24]3 years ago

6 0

Answer:

1089525

Step-by-step explanation:

2985 is per day of bulbs and a year has 365 days

so we multiply bulbs by day and days in a year

which will give us 1089525

lubasha [3.4K]3 years ago

5 0

1 year = 365 days
Factory produces 2985 bulbs - 1 day
-> 365 x 2985 = 1089525 bulbs a year
If 1 year = 366 days
-> 366 x 2985 = 1092510 bulbs a year

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Final exam scores are normally distributed with a mean of 74 and a standard deviation of 6. Approximately, what percentage of fi

notka56 [123]

Answer:

81.86%

Step-by-step explanation:

We have been given that final exam scores are normally distributed with a mean of 74 and a standard deviation of 6.

First of all we will find z-score using z-score formula.

$z=\frac{x-\mu}{\sigma}$

$z=\frac{68-74}{6}$

$z=\frac{-6}{6}=-1$

Now let us find z-score for 86.

$z=\frac{86-74}{6}$

$z=\frac{12}{6}=2$

Now we will find P(-1<Z) which is probability that a random score would be greater than 68. We will find P(2>Z) which is probability that a random score would be less than 86.

Using normal distribution table we will get,

$P(-1$

$P(2>Z)=.97725$

We will use formula $P(a$ to find the probability to find that a normal variable lies between two values.

Upon substituting our given values in above formula we will get,

$P(-1$

Upon converting 0.81859 to percentage we will get

$0.81859*100=81.859\approx 81.86$

Therefore, 81.86% of final exam score will be between 68 and 86.

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3 years ago

A student says that all linear functions are either increasing or decreasing. Do you agree? Explain

Anit [1.1K]

I disagree, because a function can have a slope of zero and be neither increasing nor decreasing.

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3 years ago

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Which BEST describes the construction of a triangle if given one side length of 10 cm and one right angle?

Svetllana [295]

D because it can't be unique since many triangles can share these characteristics. It can't be more than one triangle and the triangle is possible.

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3 years ago

A quality report for a production line shows a score of 59 points on a 65- point inspection test. A passing score is 95% complia

Sholpan [36]

Answer:

The line production did not pass inspection

Step-by-step explanation:

* Lets explain how to solve the problem

- To calculate the percentage of one number with respect to another

divide the number by the another number and multiply the answer

by 100 to convert the answer to percentage

- Ex: 15 people out of a total of 25 were female

the percentage of the female is $\frac{15}{25}*100%=60%$

* Lets solve the problem

- A quality report for a production line shows a score of 59 points on

a 65- point inspection test

- A passing score is 95% compliance

- We need to know did the production line pass inspection

∵ The score of the line production is 59 out of 65

∴ The percentage of the score = $\frac{59}{65}*100%=90.77%$

∴ The percentage of the line production is 90.77%

- The passing score is 95% compliance

∵ 90.77% is less than 95%

∴ The line production did not pass inspection

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3 years ago

Sort each characteristic according to whether it describes the parent absolute function,

goldfiish [28.3K]

Answer:

Describes f(x) = |x|, the graph opens up, the range is greater than 0, vertex is at 0,0, the domain is greater than 0

does not describe f(x) = |x|, is symmetric to the x axis, and is increasing over (0, arrow)

Step-by-step explanation:

punch the equation into desmos, I didn't cuz I know that the equation looks like, but you can visualize with any graphing calculator

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3 years ago

A factory produces 2985 bulbs in a day. how many bulbs did it produce in that year.​

A factory produces 2985 bulbs in a day. how many bulbs did it produce in that year.