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Natasha2012 [34]
3 years ago
5

Which of the following is a continuous random variable?

Mathematics
1 answer:
Nikolay [14]3 years ago
4 0
<h3>Answer: B) The time to complete a specific task.</h3>

For any two different time values, it is possible to find the midpoint or average of them. For instance, if it takes 10 minutes to do the task on Monday, and then 11 minutes to do the task on Tuesday, then it takes (10+11)/2 = 21/2 = 11.5 minutes to do the task on average. Because we are able to find a midpoint like this, and a decimal midpoint makes sense, this means time is a continuous variable.

In contrast, the number of new hires must be a whole number. If we had 10 hires on Monday and 11 hires on Tuesday, then it doesn't make sense to say we hired 11.5 people. So choice A is ruled out. Similar situations play out with choices C and D, which is why we can rule those out too. Choices A, C and D are discrete variables.

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PLEASE HELP WILL GIVE BRAINLIEST ANSWER!!
andreyandreev [35.5K]
Speed = Distance / Time

Distance = 5t^4 - 10t^2+6

Time = t+2

Now:

 5t^4 - 10t^2 + 6         | t+2
-5t^4 -10t^3                 5t^3 - 10t^2 + 10t - 20
 \\\\\ -10t^3-10t^2+6
       +10t^3+20t^2
        \\\\\\\ 10t^2+6
                -10t^2-20t
                 \\\\\ -20t+6
                      +20t+40
                       \\\\\ 46

<span>C. 5t^3-10t^2+10t-20+(46)/(t+2))</span>
3 0
2 years ago
Can u help me plssss
Anastaziya [24]

Answer:

120 I think.

Step-by-step explanation:

Because 10*12=120

3 0
3 years ago
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True or false? If two triangles are congruent, then they can be moved so that
Elena-2011 [213]

Answer:

This is true.

Congruent triangles have the same shape and the same size. So, you can position them so that one is superimposed (line up perfectly) on the other.

4 0
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Sarah's father was 30 when she was born.
Basile [38]

Answer:

He is B) 45 years old

Step-by-step explanation:

If he was 30 when she was born, he was 40 when she was 10, and he was 45 when she was 15.

15 x 3 = 45

Edit: It can actually be any of them....

3 0
2 years ago
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In the past month, Aldo rented 7 video games and 4 DVDs. The rental price for each video game was $2.30. The rental price for ea
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Answer:

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v=video games            d=DVDs

7v + 4d =

7(2.3) + 4(2.9) = 27.7

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2 years ago
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