Can somebody find the IQR (interquartile range) of this set of number for me please? Thank you!

Mathematics

1 answer:

GalinKa [24]4 years ago

8 0

We have 6.2, 6.8, 6.3, 8.8, 5.4, 8.9, 7.7, 8.1, 8.6, 5.5.
Let's put it in order.
5.4, 5.5, 6.2, 6.3, 6.8, ║7.7, 8.1, 8.6, 8.8, 8.9.
Subtract.
8.6-6.2
2.4

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Determine the Domain of: 8(x)=(4)/(x-9)

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Hi !

$f(x) = \frac{4}{x - 9}$

$x-9$ must be different from 0.

$x -9 \ne0 \\ x \ne9$

$= = > \: D_f=\mathbb{R}-\{9\}$

Have a nice day ;)

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2 years ago

Can someone please help me with this?

lidiya [134]

The angle formed by two tangles results in half of the difference of the two arcs.

That is to say

70 = .5(Major arc - minor arc)

Think of the major arc as the larger and the minor the smaller.

So therefore the difference in the two arcs = 140 (multiplying both sides of the above equation by 2.

140 = major arc - minor arc.

Another necessary idea is that the arc of a whole circle = 360 degrees, that is to say the major arc + minor arc = 360, giving us a second equation to solve.
Assuming x is the minor arc.

140 = major arc - x
360 = major arc + x

Use linear combination and add these equations to get

500 = 2*major arc

major arc = 250
minor arc or x = 110.

The answer is 110 degrees.

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