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AleksAgata [21]
3 years ago
12

During track practice, Chris ran 2.5 laps in 81 seconds. What was his average time per lap?

Mathematics
2 answers:
Vinil7 [7]3 years ago
7 0

Answer:

32.4 Seconds

Step-by-step explanation:

I think, but i'm not completely sure. Let me know if that's right

bezimeni [28]3 years ago
6 0

Answer:

35 - 40 seconds

Step-by-step explanation:

81 / 2 = 40.5 But because he ran 2.5 laps he ran more than 2 laps, 2 laps would have taken him 78 seconds. 78 / 2 = 39 So about 40.


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ZanzabumX [31]

Answer:

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Step-by-step explanation:

Volume = Difference of cones

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Volume of cone with base Circle O:

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V1 = 991.97

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3 years ago
We have a study involving 5 different groups that each contain 9 participants (45 total). What two degrees of freedom would we r
vivado [14]

Answer:

Degree of freedoms F(4,40)

Step-by-step explanation:

Given:

There is a study which is involving 5 different groups that each contains 9 participants (totally 45)

The objective is to calculate the degree of freedoms

Formula used:

Numerator degree of freedom = k-1

denominator degree of freedom=N-K

Solution:

Numerator degree of freedom = k-1

denominator degree of freedom=N-K

Where,

K= number of groups = 5

N= total number of observations

which is given as follows,

N=45

Then,

Numerator degree of freedom = k-1

=5-1

=4

Denominator degree of freedom = N-K

=45-5

=40

Therefore,

Degree of freedoms, F(4,40)

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Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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