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Sonbull [250]
3 years ago
5

The sides of a rectangular field are 80m and 18m respectively. find the length of the diagnol

Mathematics
1 answer:
ANTONII [103]3 years ago
3 0
Ppythagorean theorem a^2+b^2=c^2 a and b are legs, c is hpypotnuse a and b are sides of the filed c=diagonal 80^2+18^2=c^2 6400+324=c^2 6724=c^2 82=c the diagona is 82m
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Mila [183]
Answer is B. 2.19/Ib (just divide 4 by 8.76)
8 0
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Suppose that you are conducting a survey on how many students have blue eyes in each first period classroom at Garfield Middle s
rusak2 [61]

Answer:

  • <u>The correct statement is the first one: </u><u><em>The number of blue-eyed students in Mr. Garcia's class is 2 standard deviations to the right of the mean</em></u><em> </em>

<em />

Explanation:

To calculate how many<em> standard deviations</em> a particular value in a group is from the mean, you can use the z-score:

      z-score=(x-\mu )/\sigma

Where:

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  • \sigma  is the standard deviation

Substitute in the formula:

       z-score=(10-6)/2=4/2=2

Which means that <em>the number of blue-eyed students in Mr. Garcia's class is 2 standard deviations</em> above the mean.

Above the mean is the same that to the right of the mean, because the in the normal standard probability graph the central value is Z = 0 (the z-score of the mean value is 0), the positive values are to the right of the central value, and the negative values are to the left of the central value.

Therefore, the correct statement is the first one: <em>The number of blue-eyed students in Mr. Garcia's class is 2 standard deviations to the right of the mean, </em>

4 0
4 years ago
Coefficient of (2x+y^2)^5
Montano1993 [528]
The coefficient is 2
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6 0
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guapka [62]

Answer:

b=19

Step-by-step explanation:

2x(3x+5)+3(3x+5)=ax2 +bx+c

by expansion,

6x2 +10x +9x+15=6x2 +19x +15

6 0
3 years ago
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Yuliya22 [10]
If you do 5 divide by 4 then you can find what 1$ would be worth so ie.
5 divide by 4 is 1.25 which means that for 1$ you could buy 1.25 ounces
4 0
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