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3 years ago

Explain what i did in a detailed answer.

Mathematics

1 answer:

forsale [732]3 years ago

3 0

Answer:

Step-by-step explanation: You added the following numbers multiplied the product by 5 = 17 and then you abbrieviated it and reapeated the process

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The amount of time needed for a certain machine to process a job is a random variable with mean EXi = 10 minutes and Var(Xi)=2 m

lana66690 [7]

Answer:

0.98732

Step-by-step explanation:

Given that :

Mean = 10 minutes

Variance = 2 minutes

For less than equal 40 jobs

Mean (m) = 40 * 10 = 400 minutes

Variance = 2 * 40 = 80 minutes

Standard deviation (s) = √variance = √80

Converting hours to minutes

X = 60 * 7 = 420 minutes

P(X≤ 420) :

Z = (x - m) / s

P(X≤ 420) :

Z = (420 - 400) / √80

Z = 20 / √80 = 20 / 8.9442 = 2.236

P(Z ≤ 2.236) = 0.98732

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3 years ago

**WILL GIVE BRAINLIEST** MUST SHOW WORK!

Degger [83]

I THINK IT C

I REALLY TRIED

HOPE I HELPED

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3 years ago

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A company ships coffee mugs using boxes in the shape of cubes. The function g(x) = gives the side length, in inches, for a cube

Gekata [30.6K]

Answer:

The graph is attached below.

Step-by-step explanation:

The volume of the box containing the coffee mugs is,

$V=x^{3}$

Then the function representing the side length, in inches, for the box is:

$g(x)=x$

Now, it is provided that the company decides to double the volume of the box.

That is, the new volume will be:

$V_{n}=2x^{3}$

Then the side length, in inches, for the box will be:

$g_{n}(x)=\sqrt[3]{2x^{3}} =\sqrt[3]{2}x$

Then the graph representing the function, formed using the following points is:

$x\ \ \ \ \ \ \ \ \ g_{n}(x)\\\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\\0\ \ \ \ \ \ \ \ \ \ \ 0\\1\ \ \ \ \ \ \ \ \ \ \ 2^{1/3}$

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3 years ago

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Harry's spell casting class lasts for 11/6 hours each day. Today, he has been in the class for 7/5 of an hour so far. How much m

Pavel [41]

Answer: 1 13/30 hrs left

Step-by-step explanation:

his class lasts 2 5/6 hrs...and he has already been in there for 1 2/5 hr

so the time he has left can be found by subtracting the time he has been there from the total time of the class

2 5/6 - 1 2/5....

(2 - 1) = 1 : (5/6 - 2/5 = 25/30 - 12/30 = 13/30)

so he has 1 13/30 hrs left

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3 years ago

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I NEED A LITTLE HELP WITH MATH PLZ

Paraphin [41]

Hi there!

Amit's estimate would be a close estimate!

If you add the fractions together and put it in decimal form you get 4.96 which is very close to Amit's estimate of 5.

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3 years ago