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IgorC [24]
3 years ago
6

Hector works 12 hours per week at a part-time

Mathematics
1 answer:
rewona [7]3 years ago
6 0

Answer:

Step-by-step explanation:

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MArishka [77]

Answer:

A certain element has 25 protons.

Step-by-step explanation:

Please mark brainliest

5 0
3 years ago
The probability density function of the time it takes a hematology cell counter to complete a test on a blood sample is f(x)=0.0
uysha [10]

Answer:

a) 20%

b) 40%

c) Mean = 62.5 seconds; Variance = 52.083 seconds

Step-by-step explanation:

The time it takes a hematology cell counter to complete a test on a blood sample is continuously distributed over the period of 50 to 75 seconds with probability f(x) = 0.04.

a) The percentage of tests require more than 70 seconds is:

P(X>70) = 1- \frac{70-50}{75-50} \\P(X>70) =0.2 = 20\%

b)The percentage of tests that require less than one minute (60 seconds) is:

P(X70) =0.4 = 40\%

c) The mean and variance of a continuous distribution are determined by:

M=\frac{A+B}{2}=\frac{50+75}{2}\\ M= 62.5\ seconds\\\\V=\frac{(B-A)^2}{12}=\frac{(75-50)^2}{12}\\  V= 52.083\ seconds

Mean = 62.5 seconds.

Variance = 52.083 seconds.

3 0
3 years ago
What is the distance from the skydiving center?
Virty [35]

Answer:

This is khan academy. I am pretty sure they have a video for this but whatever.

Step-by-step explanation:

So we are using sin, cosine, and tan. 3.4 is the hypotenuse. the side is X. The angle is 20 degrees. So, this is adjacent to hypotenuse. This means it is cosine.

3.4cos(20)= around 3.19

And thats that! let me know if this is wrong and I will try to fix it.

4 0
3 years ago
Suppose you take a survey of all of the people in your town. What would you expect the relationship between a person’s age and t
Marianna [84]
I'd say the first or third one, however, I'm not too sure:)
3 0
3 years ago
Read 2 more answers
How do I get on the dark web what website?
Fynjy0 [20]

Answer:

not sure

Step-by-step explanation:

6 0
3 years ago
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