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Sergeu [11.5K]
3 years ago
7

What does zero represent in your story problem

Mathematics
2 answers:
weqwewe [10]3 years ago
6 0
What is the story problem put the story promblem
Fynjy0 [20]3 years ago
5 0
It would most likely represent nothing if its a solo number. But, if it were 10,20,30,40,50 and so on, it would represent the number your using like for example, 50. just because it has a zero in it doesnt mean it that its useless. But since it has a five in it, it would represent the number 50.
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Dave’s Automatic Door, referred to in Exercise 29, installs automatic garage door openers. Based on a sample, following are the
HACTEHA [7]

The question is not complete and the full question says;

Calculate the (a) range, (b) arithmetic mean, (c) mean deviation, and (d) interpret the values. Dave’s Automatic Door installs automatic garage door openers. The following list indicates the number of minutes needed to install a sample of 10 door openers: 28, 32, 24, 46, 44, 40, 54, 38, 32, and 42.

Answer:

A) Range = 30 minutes

B) Mean = 38

C) Mean Deviation = 7.2

D) This is well written in the explanation.

Step-by-step explanation:

A) In statistics, Range = Largest value - Smallest value. From the question, the highest time is 54 minutes while the smallest time is 24 minutes.

Thus; Range = 54 - 24 = 30 minutes

B) In statistics,

Mean = Σx/n

Where n is the number of times occurring and Σx is the sum of all the times occurring

Thus,

Σx = 28 + 32 + 24 + 46 + 44 + 40 + 54 + 38 + 32 + 42 = 380

n = 10

Thus, Mean(x') = 380/10 = 38

C) Mean deviation is given as;

M.D = [Σ(x-x')]/n

Thus, Σ(x-x') = (28-38) + (32-38) + (24-38) + (46-38) + (44-38) + (40-38) + (54-38) + (38-38) + (32-38) + (42-38) = 72

So, M.D = 72/10 = 7.2

D) The range of the times is 30 minutes.

The average time required to open one door is 38 minutes.

The number of minutes the time deviates on average from the mean of 38 minutes is 7.2 minutes

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3 years ago
Use properties of addition and subtraction to evaluate the expression. −24−8−26 Enter your answer in the comments below.
Sav [38]
The answer to this would be -58
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Which of the following graphs represents a function?
Mnenie [13.5K]

Answer:

The last one

Step-by-step explanation:

If you look at a graph, none of the line should overlap each other vertically. If a graph overlaps anywhere vertically, it is not a function.

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3 years ago
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I need help please no links or I will have you reported
Maslowich

Answer:ʜᴛᴛᴘꜱ://ᴡᴡᴡ.ʏᴏᴜᴛᴜʙᴇ.ᴄᴏᴍ/ᴡᴀᴛᴄʜ?ᴠ=ᴅQᴡ4ᴡ9ᴡɢxᴄQ

Step-by-step explanation:

Heres the answer but its on a another page.

Im joking

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