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Dvinal [7]
3 years ago
11

The mean value of land and buildings per acre from a sample of farms is $1300, with a standard deviation of $200. The data set h

as a bell-shaped distribution. Assume the number of farms in the sample is 74. Use the empirical rule to estimate the number of farms whose land and building values per acre are between $1100 and $1500.
Mathematics
1 answer:
jeka943 years ago
3 0
400 is the answer to this question i hoped it helped



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Plz help me on this question
algol [13]
I might not be correct but I believe it is no solution if u are doing those
3 0
3 years ago
Please help !! thank you so much!!
Afina-wow [57]

Step-by-step explanation:

we know that:

tan(x  - y) =  \frac{tanx - tany}{1 + tanx \times tany}

using this, we can see that x = 73 and y = 13

using this, tan(x-y) = tan(73-13) = tan(60)

therefore, A = 60

we know that tan(60) = √3

therefore, B = 3

5 0
3 years ago
In ten minutes a heart can beat 700 times. At this rate in how many minutes will a heart beat 140 times? At what rate can a hear
kifflom [539]
About an minute and a half hope this helps 
3 0
4 years ago
Read 2 more answers
What is the value of x in the equation 8x – 2y = 48, when y = 4?<br><br> 6<br> 7<br> 14<br> 48
Verdich [7]

Hello!

<h2>WORK SHOWN BELOW</h2><h2></h2><h2>8x - 2y = 48,  y =4</h2><h2 /><h2>8x - 2(4) = 48</h2><h2>8x - 8 = 48</h2><h2>8x = 48+8</h2><h2>8x  = 56</h2><h2>x = 56/8 = 7</h2><h2 /><h2>x = 7</h2>
7 0
3 years ago
Read 2 more answers
Kendra bought 4 boxes of doughnuts. There were 6 doughnuts in each box. She divided the doughnuts equally among 8 people. How ma
Zarrin [17]
Well this is pretty easy.
If there are 8 people, with 6 doughnuts in every box, then do 6*4 to give you 24.
If you know you multiplication (recommend practicing), then you would know that 8 is a multiple of 24.  So the second step to this word problem is 24/8 to give you the final answer of:
3 doughnuts / person
3 0
3 years ago
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