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N76 [4]
3 years ago
5

What is the interquartile range for this set of data?11, 19, 35, 42, 60, 72, 80, 85, 88?

Mathematics
1 answer:
Vladimir [108]3 years ago
7 0
From my  knowledge of what an interquartile range is I have to say the answer to your question is 55.5.
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If x and y in the equations
Brums [2.3K]
We can let
   a = 1/(x-1)
   b = 1/(y+2)
and rewrite the equations as
   2a - b = 10
   a + 3b = -9
Using the first to write an expression for b, we get
   b = 2a - 10
Substituting this into the second equation gives
   a + 3(2a -10) = -9
   7a -30 = -9 . . . . . . . . simplify
   7a = 21 . . . . . . . . . . .add 30
   a = 3
   b = 2·3 - 10 = -4

Now, we can find x and y.
    3 = 1/(x -1)
    x - 1 = 1/3
    x = 1 1/3 = 4/3

    -4 = 1/(y +2)
    y +2 = -1/4
    y = -2 1/4 = -9/4

Then the desired sum is
    x + y = 4/3 -9/4 = (16 -27)/12
    x + y = -11/12

The appropriate choice is ..
   c. -11/12
5 0
3 years ago
What is the smallest rotation clockwise about the center of the figure that will carry the entire figure onto itself.
postnew [5]

Step-by-step explanation:

A regular n-sided polygon has n axes of symmetry.  The angle between two consecutive axes is 360° / n.

In the case of an octagon, the angle is 360° / 8 = 45°.

3 0
2 years ago
8.p(x) = 3 + X 2
Korvikt [17]

Answer:

*answerness*

Step-by-step explanation:

*answerness*

8 0
3 years ago
the sum of the recipocal of two consecutive even number is 7/24.one number is 6.the other number will be​
coldgirl [10]

Answer:

8

Step-by-step explanation:

The numbers are 6 and 2x, then:

  • 1/6 + 1/(2x) = 7/24
  • 1/3 + 1/x = 7/12
  • (x+3)/(3x) = 7/12
  • 12(x+3) = 7*3x
  • 12x + 36 = 21x
  • 21x - 12x = 36
  • 9x = 36
  • x = 4

The other number is 2*4 = 8

6 0
3 years ago
A friend borrowed 5 different movies from the lib. in how many different orders can they watch the movies
ki77a [65]
120. 

You can use the ! function to find this. 5! = 120
8 0
3 years ago
Read 2 more answers
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