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DanielleElmas [232]
2 years ago
6

What times what equals 900?

Mathematics
2 answers:
Mrac [35]2 years ago
7 0
9 times 100
18*50
36*25
statuscvo [17]2 years ago
3 0

Answer:

90x10=900

Step-by-step explanation: 90x10=900 because you have to add 1 zero and plus if you look at it now  you could divide 900 by 10 and that will give you 90 so that is why your equation is 90x10.

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when she drives to work,Louise travels 10 minutes in about 15 minutes.kareem travels 23 miles in about 30 minutes.who has a fast
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Does 5n = -20 have one solution,infinitley many,or no solutions?​
Maslowich
One solution.

-20 divided by 5 is equal to -4. Unless both sides have the same number or one side has -=0 then it’s one solution
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Find the surface area of the cone to the nearest square unit. Use π = 3.14. radius 6cm height 9cm
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3 0
3 years ago
The test scores of a geometry class are given below. 90, 75, 72, 88, 85 The teacher wants to find the variance for the class pop
ella [17]
The data given as a whole would be called ungrouped data. Now to get the variance, you will need the formula:

s^2=   <u>Σ(x-mean)^2</u>
                   n      

x = raw data
mean = average of all data
n = no. of observations
s^2 = variance

Now we do not have the mean yet, so you have to solve for it. All you need to do is add up all the data and divide it by the number of observations. 

Data: <span>90, 75, 72, 88, 85        n= 5  
</span>Mean=<u>Σx</u>
            n
Mean = <u>90+75+72+88+85 </u>  = <u>410</u> = 82
                        5                        5

The mean is 82. Now we can make a table using this.

The firs column will be your raw data or x, the second column will be your mean and the third will be the difference between the raw data and the mean and the fourth column will be the difference raised to two. 

90-82 = 8
8^2 =64

75-82 = -7
-7^2 =49

72-82 = -10
-10^2=100

88-82=6
6^2 = 12

85-82=3
3^2=9

Now you have your results, you can now tabulate the data:

 x      mean         x-mean        (x-mean)^2     
90       82                8                      64                       
75       82               -7                      49
72       82              -10                    100
88       82                6                       36
85       82                3                       9

Now that you have a table, you will need the sum of (x-mean)^2 because the sigma sign Σ in statistics, means "the sum of."

64+49+100+36+9 = 258

This will be the answer to your question. The value of the numerator of the calculation will be 258.

 
<u>
</u>
6 0
3 years ago
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