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Rina8888 [55]
2 years ago
15

Simplify (2-7i)+(3+9i) step by step

Mathematics
2 answers:
Mariana [72]2 years ago
5 0

Answer:

first identify the like terms;

(2-7i)+(3+9i)

(2+3-7i+9i)

5+2i

gayaneshka [121]2 years ago
3 0

Answer:

5 + 2i

Step-by-step explanation:

1) Remove parentheses

2 - 7i + 3 + 9i

2) Collect like terms

(2 + 3) + (-7i + 9i)

3) Simplify

5 + 2i

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Fiesta28 [93]

The side |rs| is congruent to side |ac| which is 14 ft.

<h3>What are congruent triangles?</h3>

Congruent triangles are two similar triangles that have corresponding sides and angles and they are of equal measure.

The figures from the textbook illustrate that following rotation, the two triangles are congruent.

This signifies that the angles and sides of the first triangle are equal to the angles and sides of the other triangle.

Therefore:

  • ab = tr = 10 ft
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  • bd = ts = 20 ft

Learn more about congruent triangles here:

brainly.com/question/1675117

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