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Free_Kalibri [48]
4 years ago
14

4. If z, a+bi and z, c+di represent two complex numbers with real components a, b, c and d, then which of the following represen

ts the coefficient of i in the product of z, and z,?
(1) ac-bd

(2) ad-be

(3) ab+cd

(4) be+ad
Mathematics
1 answer:
WINSTONCH [101]4 years ago
4 0

Answer:3

Step-by-step explanation:

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Kaylah's family has completed 70% of a trip. They have traveled 35 miles. How far is the trip?
Lady_Fox [76]

Answer:

b) 50

Step-by-step explanation:

you can multiply all of the answers by .7 (70% converted into a decimal) to see which one matches 35 miles.

24.5(.7) = 17.15 INCORRECT

50(.7) = 35 CORRECT

59.5(.7) = 41.65 INCORRECT

200(.7) = 140 INCORRECT

8 0
2 years ago
Read 2 more answers
Help me I only have until 8:50 to finish this please help me​
lianna [129]

1a) f(4) = 2

1b) x = 1 and x = 3

2a) g(3) = 55

2b) If you work 5 hours... you could expect to earn $85 (according to the function)

6 0
3 years ago
What is the length of the line to the nearest sixteenth of an inch
Flura [38]
The length of the line would be 2 1/16
3 0
3 years ago
What is the answer to this problem<img src="https://tex.z-dn.net/?f=%5Cfrac%7B5y-20%7D%7B3y%2B15%7D%20.%5Cfrac%7B7y%2B35%7D%7B10
lana [24]

Answer:

7(y-4)

---------

6(y+4)

Step-by-step explanation:

5y-20        7y+35

------------ * ------------

3y+15           10y +40

Factor

5(y-4)     7(y+5)

--------  * -----------

3(y+5)     10(y+4)

Cancel like terms

(y-4)     7

--------  * -----------

3            2(y+4)

7(y-4)

---------

6(y+4)

6 0
3 years ago
Marcus mows lawns for his summer job. He earns $15 per lawn. If he earned $75 dollars during the week, how many lawns did he mow
Vilka [71]
Marcus mowed 5 lawns

Explanation: 75 divided by 15 = 5
7 0
3 years ago
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