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Lynna [10]
3 years ago
11

Based only on the given information, it is guaranteed that ac is congruent to bc. true or false?

Mathematics
2 answers:
Salsk061 [2.6K]3 years ago
6 0
True. SAS or ASA. It shows that AD and BD are congruent and the triangles also share two sides and two angles.
WITCHER [35]3 years ago
6 0

Answer:

True. SAS or ASA. It shows that AD and BD are congruent and the triangles also share two sides and two angles.

Step-by-step explanation:

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Simplify 6-12b divided by 3a-6ab
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Answer:

\frac{2}{a}

Step-by-step explanation:

Given

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= \frac{6(1-2b)}{3a(1-2b)} ← cancel common factor (1 - 2b) on numerator/denominator

= \frac{6}{3a} ← cancel 6 and 3 by 3

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If 8=−3r+7r, then r= [blank] −−−−−−.
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Answer:

r = 2

Step-by-step explanation:

8 =  - 3r + 7r \\ 8 = 4r \\ 4r = 8  \\ \\ r =  \frac{8}{4}  \\  \\ r = 2

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3 years ago
CDE E=90 c=58 CD=40 feet
Anastasy [175]

Answer:

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Step-by-step explanation:

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The triangles below are similar. By what ratio was triangle XYZ enlarged by to create triangle LMN? Use this information to calc
aliina [53]

Answer:

Ratio: 3:2

LN = 18

Step-by-step explanation:

"similar" means that all the angles are the same and the sides were all increased by the same proportion.

Thus, we know that MN/YZ = LM/XY = NL/ZX

First, we need to find the ratio. To do this, we write MN/YZ as a fraction, and simplify.

MN/YZ = 15/10 = 3/2

(If you want, you can double check this using LM nd XY. 8 * 3/2 = 12, so this is correct)

To find the missing side, we simply multiply XZ by 3/2.

12 * 3/2 = 18, so LN = 18.

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