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Free_Kalibri [48]
3 years ago
7

Question 11 of 11 -

Mathematics
1 answer:
alex41 [277]3 years ago
6 0

Answer:

AA similarity

Step-by-step explanation:

Your question is not well presented.

See attachment

Given

Triangles ABC and DBE

Required

Which postulate supports the similarities of ABC and DBE

At the first transformation (180 degrees rotation) both triangles maintain SSS and AAA relationships. i.e <em>Side-Side-Side</em> and <em>Angle-Angle-Angle</em>

This is so because rotations do not alter the side lengths; neither does it alter the angles.

When the second transformation (dilation) takes place, the lengths of both triangles ABC and DBE become different because dilation alters side lengths.

However, angle measurements remain unaltered.

<em>Hence, AAA similarity answers the question</em>

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Is -2x2y3z an expression or equation?
DochEvi [55]

Answer:

expression

Step-by-step explanation:

expressions DON'T have equal signs but equations do.

7 0
3 years ago
Hello Brainly Teacher Brainly Moderators and trusted helpers!​
tatyana61 [14]

Answer:

  • P(x < 84) = 0.3085 or approximately 31%

============

<em>Hello to you from Brainly team!</em>

<h3>Given</h3>

  • Mean grade μ = 86,
  • Standard deviation σ = 4,
  • Grade limit x = 84.

<h3>To find </h3>

  • Probability of that a randomly selected grade is less than 84 or P(x < 84).

<h3>Solution</h3>

Find z-score using relevant equation:

  • z = (x - μ)/σ

Substitute values and calculate:

  • z = (84 - 86)/4 = - 0.5

Using the z-score table find the corresponding P- value.

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2 years ago
Write the next three numbers in each counting sequence:<br> ...,40, 30, 20, ____, ____, ____,...
Leni [432]
10, 0, -10

You just have to subtract by 10
6 0
3 years ago
The difference between twice a number and three is equal to six decreased by the number find the number
devlian [24]
Translate the English to Math language:

Let x be that number


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EastWind [94]

Answer:

20 m

Step-by-step explanation:

Let the length of the perpendicular dropped from vertex C to segment AB be x

By geometric mean property:

x =  \sqrt{16 \times 9}  \\  \\ x =  \sqrt{144}  \\  \\ x = 12 \: m \\  \\ By \: Pythagoras \: Theorem: \\  \\ Distance \: across \: the \: pond \\  \\  =  \sqrt{ {16}^{2} +  {12}^{2}  }  \\  \\  =  \sqrt{256 + 144}  \\  \\  =  \sqrt{400}  \\  \\  = 20 \: m

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3 years ago
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