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steposvetlana [31]
3 years ago
6

What are the missing angle in parallelogram rstu

Mathematics
1 answer:
fiasKO [112]3 years ago
3 0

how am i meant to know if i cant see?

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Find the value of y.
snow_tiger [21]

Answer:

  y = √55

Step-by-step explanation:

All the triangles are similar, so the ratio of short side to hypotenuse is the same for all:

  5/y = y/(5+6)

  y^2 = 55

  y = √55

_____

<em>Comment on the geometry</em>

There are three "geometric mean" relationships that apply to this geometry.

  1. the altitude BD is the geometric mean of BC and BA (√30)
  2. the long side of the large triangle is the geometric mean of the longer segment of the hypotenuse and the whole hypotenuse (x = √66)
  3. the short side of the large triangle is the geometric mean of the shorter segment of the hypotenuse and the whole hypotenuse (y = √55)

If you were aware of the last of these relationships, you could write down the answer without any "work."

  y = √(5(5 +6)) = √55

__

The geometric mean is the n-th root of the product of n numbers. When there are 2 numbers, it is the square root of their product.

4 0
3 years ago
A turtle pack that normally sells for $39 is on sale for 33% off. Find the
Paul [167]

Answer:

67% discounted

26

555.2

Step-by-step explanation:

39 - 13 = 26

48 x 1.15 = 55.2

3 0
3 years ago
James Priya and Siobhan work in a grocery store James makes 9.00!per hour Priya makes 40% more than James and Siobhan makes 15%
ki77a [65]
<h2><em>James has $9 </em></h2><h2><em>Priya has $10.80 </em></h2><h2><em>Siobhan has $9.18 </em></h2><h2><em>because 9*20% is 1.8 so add that to 9 to get 10.80 then times 10.80 by 15% to get 1.62 so you subtract 1.62 from 10.80 to get $9.18  </em></h2>

<em />

5 0
3 years ago
The sum of two even numbers is even. the sum of 6 and another number is even. what conjecture can you make about the other numbe
Basile [38]
We can say that the other number is even or it is 0.
6 0
3 years ago
Figue out the measures
mart [117]

Answer:

Angle 1 is 134 and Angle 2 is 46

5 0
2 years ago
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