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Varvara68 [4.7K]
3 years ago
12

What is the length of leg s of the triangle below? A. 2.2 B. 4 C. 32 D. 4 E. 1.5 F. 16

Mathematics
1 answer:
stiv31 [10]3 years ago
4 0

Answer:

s = 4

Step-by-step explanation:

Note that the triangle has 2 congruent base angles, both 45°

This means the triangle is isosceles with congruent legs, then

s = 4

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Choose the property of addition that justifies the equation.
Studentka2010 [4]

Answer:

Associative

Step-by-step explanation:

Associative property is the one that says that when 3 or more numbers are summed, the grouping of such numbers has no effect on the result of the sum. It is:

(a + b) + c = a + (b + c) for every a, b and c real numbers.

6 0
3 years ago
Can anyone help me with this question please
klemol [59]

Answer:

  7.  ∠CBD = 100°

  8.  ∠CBD = ∠BCE = 100°; ∠CED = ∠BDE = 80°

Step-by-step explanation:

7. We presume the angles at A are congruent, so that each is 180°/9 = 20°.

Then the congruent base angles of isosceles triangle ABC will be ...

  ∠B = ∠C = (180° -20°)/2 = 80°

The angle of interest, ∠CBD is the supplement of ∠ABC, so is ...

  ∠CBD = 180° -80°

  ∠CBD = 100°

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8. In the isosceles trapezoid, base angles are congruent, and angles on the same end are supplementary:

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8 0
3 years ago
Evaluate 5+5*5+5/5-5+5*5
rewona [7]

Answer:

51

Step-by-step explanation:

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5/5=1

5+25+1-5+25

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31-5+25

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51

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3 years ago
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Answer:

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Step-by-step explanation:

Take a couple of differences and see:

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  5 -11 = -6

The common difference is -6.

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