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sammy [17]
2 years ago
7

PLEASE HELP

Mathematics
1 answer:
OLga [1]2 years ago
3 0

Answer:

Step-by-step explanation:

Draw a picture Of a triangle ABC  , BC as Base connect D on AB , and E on AC together with a line parallel to Base BC

Λ  if using one of the 5 postulate of Euclid:

 "If 2 parallel line intersected by a third line, the interior angles are equal."

    < B = < D ,  and < C = < E .

      Triangle ABC is similar to ADE

     AD/ Ab = AC / AB

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Orlov [11]

Answer:

its 134

Step-by-step explanation:

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1 year ago
Last year's computer models are discounted 20%. What was the original price to the nearest dollar of a computer that now costs $
Alisiya [41]

Answer:

<h3>$1850</h3>

Step-by-step explanation:

<h3>If the Original price was $ X , Then </h3>

x - 0.20x \:  = 1480

0.8x = 1480

x = 1480 \div 0.8

<h3>So , X = 1850 dollars .</h3>

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21x^5y^4-18x^7y^3+15x^2y^5
soldi70 [24.7K]

Do you want us to answer or simplify?

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3 years ago
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Blizzard [7]

Answer:

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Step-by-step explanation:

been struggling and crying I try my best and I still can’t I give up and please help me this is due today

6 0
3 years ago
Find the value of x in a triangle. x-20, x+10, x-20
tatyana61 [14]

The value of the angles should be. (x-40°). , (x-20°), (½x-10°) , not (x-40°) + (x-20°)+(½x-10°)

Sum of all the interior angles of a triangle is 180°.

So a equation can be made by the given data,

(x-40°) + (x-20°) + (½ x-10°) = 180°

x-40°+x-20°+½x-10° = 180°

2x+½x -60°-10° = 180°

5/2 x - 70° = 180°

5/2 x = 180° + 70°

5/2 x = 250°

x = 250° × 2/5

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So the angles are

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x-20° = 100°–20° = 80°

½x-10° = ½(100)° - 10° = 50° -10° = 40°

The answer can be checked by putting the values of the angle we got in the second statement i.e. Sum of all the interior angles of a triangle is 180°.

60° + 80° + 40° = 100° + 80° = 180°

6 0
3 years ago
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