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DiKsa [7]
3 years ago
5

I^89 simplified. Complex number.

Mathematics
1 answer:
Semmy [17]3 years ago
3 0
This problem can be simplified by remembering that since i= \sqrt{-1}, we have i^{4}=(-1)^{2}=1. Then we have i^{89}=i^{88+1}=i^{88}i^{1}=(i^{4})^{22}i=(1)^{22}i=i.
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What is the opposite of 23? :) help
nexus9112 [7]

Anwser: -23

Step-by-step explanation:

I knew that because i just did negative and positive numbers on a number line

3 0
2 years ago
If you meet five classmates, what is the probability that three are female?
klasskru [66]

Answer:

3/5 is probability of female out of 5 classmates.

hope it helps

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5 0
2 years ago
Gitta is planning a birthday party.she has an $80 budget. Pizzas cost $5 each,2-liter bottles of soda cost $3 each,and delivery
tia_tia [17]
She can buy 5 bottles of soda
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3 years ago
Lea sold 2 cherry pies and 4 pumpkin pies for a total of $116. Kali sold 7 cherry pies and 8 pumpkins pies for a total of $286.
Nitella [24]

Answer: the cost of one cherry pie is $18 and the cost of one pumpkin pie is $20

Step-by-step explanation:

Let x represent the cost of one cherry pie.

Let y represent the cost of one pumpkin pie.

Lea sold 2 cherry pies and 4 pumpkin pies for a total of $116. This means that

2x + 4y = 116 - - - - - - - - - - - - - -1

Kali sold 7 cherry pies and 8 pumpkins pies for a total of $286. This means that

7x + 8y = 286 - - - - - - - - - - - - 2

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14x + 28y = 812

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Substituting y = 20 into equation 1, it becomes

2x + 4 × 20 = 116

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2x = 116 - 80 = 36

x = 36/2 = 18

7 0
3 years ago
I need fast help with step by step<br> <img src="https://tex.z-dn.net/?f=%5Cint%5Climits%5E2_1%20%7B%5Cfrac%7B3x-1%7D%7Bx%2B1%7D
Ganezh [65]

Answer:

1.38 to the nearest hundredth.

Step-by-step explanation:

Dividing:

x + 1 ) 3x - 1 ( 3            

          3x + 3

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so (3x - 1) / (x + 1) =  3  - 4 / x+ 1

Integral  of (3  - 4 / x+1 )  = 3x - 4 ln(x + 1)

Between  limits of 1 and 2 we have:

(3(2) - 4 ln 3) - (3 - 4 ln2)

=  1.6056 - 0.2274

= 1.3782.

5 0
3 years ago
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