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Pachacha [2.7K]
3 years ago
5

A number x, rounded to 1 decimal place is 12.3 write down the error interval for x

Mathematics
donnaye
3 years ago
help
1 answer:
icang [17]3 years ago
3 0
We know that
<span>A number x, rounded to 1 decimal place is 12.3
</span><span>so
x>=12.25
and
x < 12.35

</span><span>the error interval for x is the interval [12.25,12.35)
</span>
the answer is
[12.25,12.35)


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Plz help me with questions 4
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Answer:

  see attached

Step-by-step explanation:

a) One way you can try to identify the pattern is to look for the differences between the images shown, then divide those differences by 2. For example, the total number of vertical dots is 2, then 4 in patterns 2 and 4. This suggests the total number of vertical dots is equal to the pattern number..

The total number of horizontal dots is 4, then 6 in patterns 2 and 4. This suggests that the number of horizontal dots increases by 1 in each pattern. This would mean pattern 1 would have 3 total horizontal dots and 1 total vertical dot. It will look like one row of 3 dots.

Pattern 3 will have 5 total horizontal dots and 3 total vertical dots. The sequence of patterns will look like the attachment.

__

b) The total number of dots in each pattern is 2×(pattern number) +1. Then the number of dots in Pattern 7 will be 2×7 +1 = 15 dots.

8 0
3 years ago
7.) Given f(x) = 6(x - 1). what is the value of f(-8)? * A) 42 B) -42 C) 54 D) -54​
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Answer:

D) -54

Step-by-step explanation:

To solve this question, simply plug in -8 for x:

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Step-by-step explanation:

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Neporo4naja [7]

Answer:

4.

  • this shows that the height of 13 year old females in one class is less variable than the other class.
  • this means that the height of students in class with range 6 may vary from person to person while that in class with range 3 maybe clustered around one another.
  • we're expected to see students of almost same height in class ,with range 3, more than the students in class with range 6.

5.

arranging the values in ascending order

2, 2, 4, 4, 4, 5, 6, 6, 6, 8, 8, 9

mean  =   \frac{ sum \: of \: all \: observations}{total \: number \: of \: observations}

= \frac{2+2+4+4+4+5+6+6+6+8+8+9}{12}

= \frac{64}{12}  \\  =  \frac{16}{3}

median = 1/ 2 [ n/2th term +{ (n/2)+ 1 }th term ]

for n is even

= 1/ 2 [ 6th + 7th term]

= 1/ 2 [5 + 6]

= 5.5

mode = value with highest frequency or the value that appears most frequently In a given set of data.

mode =4, 6

because both 4and 6 appear 3 times in the given set of data which is the highest frequency.

5 0
3 years ago
Read 2 more answers
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