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TEA [102]
3 years ago
5

A rock has a mass of 84 grams and a volume of 12 cc what is density?

Mathematics
2 answers:
JulsSmile [24]3 years ago
6 0
The answer is 7 g/cc
Firlakuza [10]3 years ago
3 0
The formula for density is:

Mass/Volume, or in other terms, mass divided by volume.

So, lets look at our numbers:
We know our mass is 84 grams, and our volume is 12 cc. So, all we need to do is divide 84 by 12, which is 7.

So, the density is 7.
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What is the median of these numbers: 11, 13, 4, 9
Rom4ik [11]

Answer:

10

Step-by-step explanation:

11, 13, 4, 9

In order to find the median we must first arrange the numbers in order (Least to greatest)

4, 9, 11, 13

If there is 2 numbers in the middle: the median is their average

If there is only one number in the middle, that number is the median.

Since there are two numbers (9 and 11) we have to take their average.

(9+11) / 2 = 20 / 2 = 10

The median is 10!

6 0
3 years ago
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Which angles are pairs of alternate exterior angles? Check all that apply.
densk [106]

Answer:

A & E

Step-by-step explanation:

8 0
3 years ago
Plz answer the question
Leviafan [203]
The percentage of tax is 6%
6 0
3 years ago
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The sum of eight and a number, x, is three.
Tresset [83]

Answer:

x= -5

Step-by-step explanation:

8+(-5)=3

7 0
3 years ago
The ages (in years) of the 6 employees at a particular computer store are 44, 46, 40, 34, 29, 41
son4ous [18]
step 1
<span>compute the average: add the values and divide by 6
Average =(44+ 46+40+34+29+41)/6=39

step 2
</span><span>Compute the deviations from the average
dev: (44-39)=5,
</span>dev: (46-39)=7
dev: (40-39)=1
dev: (34-39)=-5
dev: (29-39)=-10
dev: (41-39)=2

step 3
<span>Square the deviations and add
sum (dev^2): 5^2+7^2+1</span>^2+-5^2+-10^2+2^2
sum (dev^2): 25+49+1+25+100+4-----> 204

step 4
<span>Divide step #3 by the sample size=6
(typically you divide by sample size-1 to get the sample standard deviation,
 but you are assuming the 6 values are the population,
so
no need to subtract 1, from the sample size.
This result is the variance
Variance =204/6=34

step 5
</span><span>Standard deviation = sqrt(variance)
standard deviation= </span>√<span>(34)------> 5.83

the answer is
5.83</span>


4 0
3 years ago
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