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8_murik_8 [283]
3 years ago
12

Express the complex number in trigonometric form.

Mathematics
1 answer:
Maru [420]3 years ago
7 0
-5i can be written as 0 + (-5)i
It is in the form a+bi where a = 0 and b =-5
So the point (a,b) is (0,-5)

The distance from the origin to this point is 5 units, therefore r = 5. This is the magnitude. 

The angle is 270 degrees as shown in the attached image. You start on the positive x axis and rotate until you reach the point (0,-5)

This is why the answer is choice A) 5(cos(270) + i*sin(270))

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Are 3k3 and 8k like terms?
givi [52]

Answer:

i believe so, 3k3 is just 3k to the third power so i think theyd be like terms still

7 0
2 years ago
The cost of sending an overnight package from Los Angeles to Miami is $26.30 for a package weighing up to but not including 1 po
Phoenix [80]

Answer:

The answer is shown in the pic.

Step-by-step explanation:

The cost model will have a fixed cost of $26.30 for 0 ≤ x ≤ 1 lb and variable cost of $4.00/lb for x > 1.

As seen on the pic, the graph will be that of the greatest integer function that is vertically stretched by a factor 4.00 & shifted 26.30 units upward.

7 0
3 years ago
BIG 100 POINTS, need this for a test asap... PLEASE HELP
pentagon [3]

Answer:

7. im only in middle school but i think you have to take 496 and list its factors, then once you find the right pair, check to see if the difference is 238.

IM TRYING PLEASE DONT YELL AT ME HDBHNSJDGD

6 0
3 years ago
Wayne and Garth are planning to have a concert. They have found two good options. Option 1: Malcolm's Music Hall will pay them $
storchak [24]

Answer:

50 people

Step-by-step explanation:

If you are to calculate the number of people that will come to the concert that will ensure option 1 and option 2 to yield equal amount

Let

x = number of people

Option 1:

Malcolm's Music Hall = 100 + 15x

Option 2:

Reggie's Reggae Room = 350 + 10x

Equate both options

100 + 15x = 350 + 10x

Collect like terms

100 - 350 = 10x - 15x

-250 = - 5x

x = -250/-5

x = 50 people

8 0
3 years ago
Club A has 25 members and club B has 57 members. If the total number of people is 75 and every people joined in at least one clu
Leviafan [203]

ANSWER :

Club A will have 62.5

Club B will have 92.5

both of the clubs will get 37.5 each

*answer maybe wrong

8 0
2 years ago
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