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Leni [432]
3 years ago
7

In the construction of a segment congruent to a given segment shown, what is CD?

Mathematics
1 answer:
pogonyaev3 years ago
4 0

If segments AB and CD are congruent, then they have equal lengths:

5x-2=2x+7.

Solve this equation.

1. Separate terms with x and without x in different sides:

5x-2x=7+2,

3x=9.

2. Divide by 3:

x=3.

Then CD=2x+7=2·3+7=6+7=13.

Answer: correct choice is B.

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Find the equivalent equation that does not contain fractions 2/3 x 7=1/2
mariarad [96]

Answer:

4x + 42 = 3

Step-by-step explanation:

Given:

\frac{2}{3}x + 7 = \frac{1}{2}

Required

Equivalent expression without fraction

To do this, we simply multiply through by a common multiple of the denominators in the expression.

The denominators are 2 and 3

2 = 2,4,6,8,10,..

3 = 3,6,9,12..

So, 6 is the least common multiple.

Multiply both sides by 6

6 * (\frac{2}{3}x + 7) = \frac{1}{2} * 6

6 *\frac{2}{3}x + 6*7 = \frac{1}{2} * 6

\frac{12}{3}x + 42 = \frac{6}{2}

4x + 42 = 3

<em>Hence, an equivalent expression.</em>

3 0
2 years ago
* This is the correct answer, I have taken the test and am posting the answers in hopes of helping other people :] *
Alex

Answer:

thank you so much!!!!!!!!!

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sineoko [7]
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Find measure jk <br> Answers are 52, 128, 154 &amp; 180
Mamont248 [21]

Answer:

b. 128°

Step-by-step explanation:

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arc KL = 180° (half circle)

so

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arc JK = 128°

Answer

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