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Nata [24]
3 years ago
7

Adding and subtracting integers

Mathematics
1 answer:
belka [17]3 years ago
7 0

1) -15

2) 5

3) -13

4) -4

5) 5

6) 14

7) 0

8) -8

9) -8

10) 7

These are very easy, when subtracting a negative from a positive think of it as just plain subtraction. When adding a negative to a positive, again, think of it as subtraction. When subtracting two negatives it's basically addition but you final answer should have a negative sign.

Hope I could help! :)

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What is the MAD of this numbers?
Stella [2.4K]
We know that
The MAD is <span>the mean absolute deviation of the data

step 1
</span><span>To find the mean absolute deviation of the data, start by finding the mean of the data set.
</span><span>Find the sum of the data values, and divide the sum by the number of data values
</span>sum of the data values=[130+150+190+100+175+120+165+140+180+190]
sum of the data values=1540
number of data=10
Mean=1540/10-----> 154

step 2
<span>Find the absolute value of the difference between each data value and the mean: |data value – mean|.
</span> |130 – 154|=24
 |150 – 154|=4
 |190 – 154|=44
 |100 – 154|=54
 |175 – 154|=21
 |120 – 154|=34
 |165 – 154|=11
 |140 – 154|=14
 |180 – 154|=26
 |190 – 154|=44

step 3
<span>Find the sum of the absolute values of the differences.
</span>=[24+4+44+54+21+34+11+14+26+44]------> 276

step 4
<span>Divide the sum of the absolute values of the differences by the number of data values.
</span>276/10-----> 27.6

the answer is
27.6
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3 years ago
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Marrrta [24]

Answer:

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Step-by-step explanation:

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3 years ago
WILL GIVE BRAINIEST: A beetle weighs 8.7 x 10^-3 gram. What is 8.7 x 10^-3 written in standard form?
Montano1993 [528]

Answer:

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Step-by-step explanation:

8.7 x 10^-3

10^-3  means move the decimal to the left 3 places.  The negative means left, positive would mean right.  We add 0 to make enough places to move it to the left 3

008.7

Move it 3 places left

.0087

This is in standard form

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Well you could round it to the 4th decimal, which would be 2.7183
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3 years ago
BD bisects ABC. Find the value of x.
yuradex [85]
90-52=38

38=3x-5

3x=43

x=14.3
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2 years ago
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