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Natasha2012 [34]
3 years ago
6

I'll give 100 pts and brainliest if you answer this!!!

Mathematics
1 answer:
alex41 [277]3 years ago
6 0

Answer:

1. 4i+15

2. 5i+18

3. -11i+10

4. -2i

5. 9i+5

6. -13

7. -15i^{2}+18i

8. -4i^2-16i

9. -6i^2+38i-40

10. -42i^2+27i-3

11. -25i^2+4

12. -i^2+9

13. 2i+8

14. -18i+10

Step-by-step explanation:

Standard form means to put the terms in order based on their exponent (x³ -> x² -> x -> constant)

1. (6 - i) + (9 + 5i)

4i+15

2. (7 + 3i) + (11 + 2i)

5i+18

3. (12 + 4i) - (2 - 15i)

-11i+10

4. (3 - 7i) - (3 + 5i)

-2i

35i^2+6i-9

5. 7 - (2 - 3i) + 6i

7 - 2 + 3i + 6i

9i+5

6. -16 + (3 + 4i) - 4i

-16 + 3 + 4i - 4i

-13

7. 3i(6-5i)

18i-15i^2

-15i^2+18i

8. -2i(8+2i)

-16i+-4i^2

-4i^2-16i

9. (-5 + i)(8 - 6i)

-40+30i+8i-6i^2

-6i^2+38i-40

10. (3 - 6i)(-1 + 7i)

-3+21i+6i-42i^2

42i^2+27i-3

11. (2 + 5i)(2 - 5i)

4-10i+10i-25i^{2}

-25i^2+4

12. (-3 - i)(-3 + i)

9 -3i + 3i -i^2

-i^2+9

13. (4 + i) * 2

2i+8

14. (5 - 9i) * 2

-18i+10

:p when I first started answering this I thought the parentheses were being multiplied every time and did 100x more work .-.

Hope it helps <3 :D

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Answer:

Daniela spent 1/20 of an hour longer on her English homework than her Math homework.

Step-by-step explanation:

I think what your asking is how much longer Daniela took on her English homework then her math homework. If that's what your asking, you need to subtract 3/4 from 4/5.

First, the denominators need to be the same (meaning we have to multiply them):

4/5 * 4 = 16/20

3/4 * 5 = 15/20  

Finally, we subtract the two fractions:

16/20 - 15/20 = 1/20

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Answer:

I would say B is the answer

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Find the slope of the line that passes through the points (3,6) and (5, 3).<br> -3/2<br> 3/2<br> 2/3
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Answer:

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Step-by-step explanation:

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