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german
3 years ago
11

Only B is needed. Lots of points. Please help. Thanks.

Mathematics
1 answer:
Anuta_ua [19.1K]3 years ago
6 0
Ok so find the median so put the numbers in order so 82,83,84,85,85,86,86,86,87,87,88,89,90
then start from both sides cross off from both dies at the same time 
83,84,85,85,86,86,86,87,87,88,89

84,85,85,86,86,86,87,87,88

85,85,86,86,86,87,87

85,86,86,86,87

85,86,86,86

86,86 

so... 86 is the answer. i know its long but its the whole work hope it helped.
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Alexeev081 [22]
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Shorter leg = x

Hypotenuse = x + 8


Using Pythagorean Theorem:

a^2 + b^2 = c^2

(x + 4)^2 + x^2 = (x + 8)^2

x^2 + 8x + 16 + x^2 = x^2 + 16x + 64

2x^2 + 8x + 16 = x^2 + 16x + 64

2x^2 +8x = x^2 + 16x + 48

2x^2 - 8x = x^2 + 48

x^2 - 8x = 48

x^2 - 8x - 48 = 0

You can complete the square from here or use the quadratic formula.

Completing the square:

x^2 - 8x = 48

x^2 - 8x + (-8/2)^2 = 48 + (-8/2)^2

x^2 - 8x + 16 = 48 + 16

(x - 4)(x - 4) = 64 or (x - 4)^2 = 64

x - 4 = +√64 OR x - 4 = -√64

x - 4 = +8 OR x - 4 = -8

x = 12 OR x = -4

However, you can't use negative 4 as a length because your length needs to be a positive.

So x will be 12.


Shorter leg: 12

Longer leg: 12 + 4

Hypotenuse: 12 + 8

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Point w id located at (-2,3) on a coordinate plane. Point W is reflected over the x-axis to create point W" is then reflected ov
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Answer:

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Step-by-step explanation:

Reflection over the x-axis negates the y-coordinate and leaves the x-coordinate alone. The W becomes ...

... W' = (-2, -3)

Reflection over the y-axis negates the x-coordinate and leaves the y-coordinate alone. The W' becomes ...

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Answer:

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Step-by-step explanation:

am not sure if this is correct but

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