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Aloiza [94]
3 years ago
10

4. Calculate the mean of the data set {22, 34, 37, 23, 45, 21, 29, 37}. Round to the nearest tenth.

Mathematics
1 answer:
Simora [160]3 years ago
6 0

Answer:

31.0

Step-by-step explanation:

The mean of a given set of data is the ratio of the sum of the data to the number of units that make up the data set. It is also called the average of the data set.

Given the data set {22, 34, 37, 23, 45, 21, 29, 37}. There are 8 numbers in the set. The total of these numbers

= 22 + 34 + 37 + 23 + 45 + 21 + 29 + 37

= 248

The mean = 248/8

= 31

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pantera1 [17]

Answer:

P = \frac{2}{3} [J(y)] - 2

Step-by-step explanation:

If Jojo completes P number of paintings working w weeks then the relation between P and w is given by P = \frac{2}{3} w - 2. ........ (1)

Again, the function J(y) represents how many weeks per year she spends painting.

So, w = J(y). ...... (2)

Therefore, the composite function which represent how many paintings Jojo completes in a year, is given by  

P = \frac{2}{3} [J(y)] - 2  (Answer)

3 0
3 years ago
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3,10,17,24,31,38 are composite
rewona [7]
Prime: 3,17,31

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3 years ago
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Arnold skydives out of an airplane with a parachute. After he opened his parachute Arnold descended at 70feet per second. An obs
vivado [14]

Answer:

Arnold descended a distance of 5,250 ft after his parachute opened

Step-by-step explanation:

Here in this question, we want to know the distance Arnold descended after his parachute opened.

Mathematically, we know that distance = speed * time

In this case;

The speed is the rate at which he descended = 70 ft per second

Now the time is 1 minute and 15 seconds; since 1 minute is 60 seconds, then 1 minute and 15 seconds is 60 + 15 = 75 seconds

So what we are saying is he descended at a rate of 70 ft per second for 75 seconds

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3 years ago
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a larger gear wheel has 40 teeth and a small gear wheel has 25 teeth. if the larger one makes 100 revolutions in a minute, how m
nevsk [136]
Lets calculate gear ration T2/T1
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5 0
3 years ago
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vovikov84 [41]
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In this case, -1/2 is the slope
6 0
2 years ago
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