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Lostsunrise [7]
3 years ago
11

Rewrite 7+ square root-121 in complex number notation

Mathematics
1 answer:
marin [14]3 years ago
6 0

7 + \sqrt{-121} = 7 + 11i because we define \sqrt{-1} = i

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You are playing a game where you draw a card from a standard deck, and you will win $13 if you draw a face card,
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Answer:

Step-by-step explanation:

win

There are 3 face cards / suit. Every suit contains a Jack, Queen, and king.

There are 4 suits so the number of face cards is 3*4 =  12

There is 1 ace / suit

There are 4 suits so the number of aces is 1 * 4 = 4

The gain from the face cards = 12 * 13 = 156

The gain from the aces = 4 * 3 =               12

Total gain = 168

Losses

Any other card costs you $5

How many cards is that? 52 - 16 = 36

Each one costs 5 dollars

Total loss = 5 * 36 = 180

So each time you play the game, you can expect to lose 180 - 68 = 12 dollars. You should walk away quickly from this one.

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2 years ago
How does the 5 in the tens place<br> compare to the 5 in the ones place?<br> 3,055
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Step-by-step explanation:

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3 years ago
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A flagpole that is 32 feet tall casts a 67-foot shadow. What is the angle, marked with an x on the diagram, that the sun hits th
Elenna [48]

Answer:

64

Step-by-step explanation:

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3 years ago
The area of a square garden is 50m^2. How long is the diagonal?
abruzzese [7]

Answer:

Adjacent length = √(50) m

Pythagorean theorem:

a^2 + b^2 = c^2

a = √(50) m

b = √(50) m

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Hence probability that he or she is a male or civilian employee is

0.6139 + 0.1192 + 0.304 = 1.037068

7 0
3 years ago
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