4 years ago

Are these congruent or no?

1 answer:

7 0

Yes, both are congruent. The longest sides have the little mark indicating they are congruent.
Also, the two right angles correspond and are congruent as well.

I hope that helps!

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Solve this quadratic equation by completing the square. x2 + 10x = 26

Misha Larkins [42]

  x² + 10x = 26
  x² + 10x + 25 = 26 + 25
  x² + 5x + 5x + 25 = 51
x(x) + x(5) + 5(x) + 5(5) = 51
x(x + 5) + 5(x + 5) = 51
(x + 5)(x + 5) = 51
(x + 5)² = 51
x + 5 = ±√(51)
- 5 - 5
x = -5 ± √(51)
x = -5 + √(51) or x = -5 - √(51)

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4 years ago

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Which operation gives a result of 1.39? sum of 2.39 and -130 sum of 0.63 and 1.25 sum of -2.96 and 4.35 sum of -5.66 and 1.25

wariber [46]

2.39 - 1.30 = 1.09 (no)
0.63 + 1.25 = 1.88 (no)
-2.96 + 4.35 = 1.39 (yes)
-5.66 + 1.25 = 4.41 (no)

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3 years ago

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A group of 3 explorers travelled through the new Guinea rain forests with 3 Marind-Anim guides. Their inflatable dinghy could on

Lesechka [4]

Answer:

Hello,

Step-by-step explanation:

Let's assume A,B,C the 3 explorers and X,Y,Z the 3 guides.

Only A and X can operate the boat.

$\begin{array}{|c|c|c|}border\ 1 &boat&border\ 2\\ABCXYZ&-&-\\BCYZ&AX&-\\BCYZ&A&X\\BCY&AZ&X\\BCY&A&XZ\\CY&AB&XZ\\CY&X&ABZ\\Y&CX&ABZ\\Y&X&ABCZ\\-&XY&ABCZ\\-&-&ABCXYZ\\\end{array}$

I hope you will understand the travels

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2 years ago

Expression of partial product

Gnoma [55]

I don't see how is this a question ._.

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4 years ago

Customers of a phone company can choose between two service plans for long distance calls. The first plan has an $18 monthly fee

Svetlanka [38]

18 + 0.14m = 8 + 0.19m
18 - 8 = 0.19m - 0.14m
10 = 0.05m
10 / 0.05 = m
200 = m <== they will cost the same at 200 minutes

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4 years ago