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Helen [10]
3 years ago
7

Find the difference of the complex numbers. (2 +8i)-(-5 - 3i)

Mathematics
1 answer:
Bess [88]3 years ago
8 0

Answer:

7 + 11i

Step-by-step explanation:

Simplify: (2 +8i)-(-5 - 3i) = 2 + 8i + 5 + 3i  

Add real numbers to real numbers and imaginary to imaginary: 2 + 8i + 5 + 3i = 7 + 11i

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On the last day of a Shakespeare class, an English teacher asked her students which play they liked most. Out of the 18 students
Vika [28.1K]

Answer:

1/3

Step-by-step explanation:

There were 18 students and six liked Much Ado About Nothing. So, you could write this as 6/18 which simplifies to 1/3.

7 0
3 years ago
Alaina needs to sell 225 boxes in order to be the top seller. She sells thin mints and samoas to all of her customers for a tota
Digiron [165]

Answer:

94 boxes of samoas

131 boxes of thin mints

Step-by-step explanation:

m=mints

s=samoas

s+m=225    m=225-s

s(2.5)+m(3)=628

2.5s+3m=628

substitute for m

2.5s+3(225-s)=628

2.5s+675-3s=628

reduce

-0.5s=-47

s=94

m=131

4 0
2 years ago
Easy math please help
insens350 [35]

1) False

Adjacent angles must share a common side/ray.

2) B and D

Adjacent angles are those that are directly next to each other and share a common side.

3) C

Angles 1 and 2 are congruent. Angles 3 and 4 are congruent. Both of these pairs have angles that are opposite each other.

4) B

Angles 1 and 2 add up to 180. Angles 3 and 4 add up to 180. Both of these pairs of angles are supplementary.

5) A

These angles are directly next to each other and share a common side.

Hope this helps!! :)

4 0
2 years ago
A runner covers a distance of 1200m with an average speed of 4m/s. How long does it take to run this distance? Then calculate th
Nadusha1986 [10]

Answer:

5mins

Step-by-step explanation:

well i did 1200 divided y 4 then divided that answer by 60

8 0
3 years ago
Solve for e.<br><br><br>9e + 4 = -5e + 14 + 13e
sladkih [1.3K]

Answer:

10.

Step-by-step explanation:

9e + 4 = -5e + 14 + 13e

9e + 5e - 13e = 14 - 4

e = 10

5 0
2 years ago
Read 2 more answers
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