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Sever21 [200]
3 years ago
7

I need quick help pls!! by reason: AAA or ASA, SAA or Cannot be determined or SAS or SSS

Mathematics
1 answer:
Ray Of Light [21]3 years ago
5 0

Answer:

  ΔDCE by ASA

Step-by-step explanation:

The marks on the diagram show AE ≅ DE. We know vertical angles AEB and DEC are congruent, and we know alternate interior angles BAE and CDE are congruent. The congruent angles we have identified are on either end of the congruent segment, so the ASA theorem applies.

Matching corresponding vertices, we can declare ΔABE ≅ ΔDCE.

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What value of b makes the trinomial below a perfect square x^2-bx+100
Aloiza [94]
1. Perfect square trinomials, are 2nd degree polynomials, of the form          a x^{2} +bx+c so that a \neq 0, b \neq 0, c \neq 0, which can be written as perfect squares.

2. For example (x+1) ^{2} = x^{2} +2x+1
 
(3x-1)^{2}= (3x)^{2}-2(3x)+(-1) ^{2}= 9x^{2}-6x+1    


3. Thus x^{2} +2x+1, 9x^{2}-6x+1 are perfect square trinomials.

4. x^{2} -bx+100= x^{2} -bx+ 10^{2}= (x+10)^{2}   or  (x-10)^{2}

5. In the first case -b=20, so b=-20. In the second case, -b=-20, so b=20.

6. b∈{-20, 20}
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3 years ago
What is the difference in simplest terms of 3/4 - 1/3
GuDViN [60]

Answer:

5/12

Step-by-step explanation:

can't be anymore simplified, it already is

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3 years ago
Juniper wants to make a new rectangular garden in her backyard that has a length that is 2 more than twice the width. She needs
lisabon 2012 [21]

Answer:

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Step-by-step explanation:

x = length

y = width

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the perimeter of the garden = 2 times the length + 2 times the width

she have 64ft of wire so the perimeter should be equal or less than 64 ft

64 ≥ 2x + 2y

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3 years ago
For a rectangle with length 3x+4 and perimeter of 10x+18, what is the width of the rectangle?
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Answer:

For a rectangle with length 3x+4 and perimeter of 10x+18, what is the width of the rectangle

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I REALLY NEED HELP FAST! Name the marked angle in 2 different ways.
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Answer:

Step-by-step explanation:

7 0
3 years ago
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