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3 years ago

10

Please help! I’m confused (both questions, 24 & 25)

1 answer:

Bond [772]3 years ago

3 0

Answer:

Step-by-step explanation:

24.

∠Y=30°

w+30+30=180

w=180-60=120°

25.

2x-5=y+3=8

2x-5=8

2x=8+5=13

x=13/2=6.5

y+3=8

y=8-3=5

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Answer:

$1. \: 3i$

2. option D

3. option C

4. option D

5. option C

6. option B

7. option C

8. option D

9. option C

10. option C

Step-by-step explanation:

<h2> $1. \: \sqrt{ - 9}$ </h2>

$\sqrt{ - 1(9)}$

$\sqrt{ - 1} \times \sqrt{ 9}$

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$i \times \sqrt{8}$

$i \times \sqrt{ {2}^{2} \times 2 }$

$2i \sqrt{2}$

<h2> $3. \: \sqrt{ - 80}$ </h2>

$\sqrt{ - 1} \times \sqrt{80}$

$i \times \sqrt{80}$

$4i \: \sqrt{5}$

<h2> $4. \: \sqrt{ - 75}$ </h2>

$\sqrt{ - 1} \times \sqrt{75}$

$i \times \sqrt{75}$

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$\sqrt{ - 1} \times \sqrt{72}$

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$i \times ( {6}^{2} \times 2)$

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<h2> $6. \sqrt{ - 20}$ </h2>

$\sqrt{ - 1} \times \sqrt{20}$

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$i \times \sqrt{ {2}^{2} \times 5}$

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<h2> $7. \: \sqrt{ - 27}$ </h2>

$\sqrt{ - 1} \times \sqrt{27}$

$i \times \sqrt{27}$

$i \times \sqrt{ {3}^{2} \times 3}$

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