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kotykmax [81]
3 years ago
5

What is cardinality of A={1,4,9}​

Mathematics
1 answer:
Semenov [28]3 years ago
4 0

Answer:

3

Step-by-step explanation:

The cardinality of a set a measure of the number of elements in a set.

A set is a group of objects that have a well defined relationship between them.

In the given set,  A={1,4,9}​

 The set of A has 3 elements which are 1, 4 and 9

So, the cardinality of this set is 3.

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2 laundry company one time fee
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Step-by-step explanation:

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7 0
3 years ago
Evaluate this exponential expression 7 • (6+2)^2 - 3^2=
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Answer: 441

Step-by-step explanation:

7*(6+2)^2-3^2

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441

3 0
2 years ago
If an ambulance has an average speed of 0.83 miles per minute and an average response time of 8 minutes, what is the average dis
Mrac [35]

Answer: The average distance the ambulance travels to reach an emergency situation is 6.64 miles.

Step-by-step explanation:

Hi, to answer this question we have to apply the speed formula:

Speed rate = distance / time  

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0.83 miles per minute  = d / 8 minutes

Solving for d (distance)

0.83 mpm x 8 m =d

d =6.64 miles

The average distance the ambulance travels to reach an emergency situation is 6.64 miles.

Feel free to ask for more if needed or if you did not understand something.

4 0
3 years ago
If the monthly electrical utility bills of all customers for the Far East Power and Light Company are known to be distributed as
Y_Kistochka [10]

Answer:

A) About $195.00

Step-by-step explanation:

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4 0
3 years ago
If a 45º-45º-90º triangle has a hypotenuse of length 9, find the leg length.
iVinArrow [24]

Answer:

Step-by-step explanation:

x²+x²=9²

2x²=81

x²=81/2=(81×2)/4

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9.

x²+x²=11²

2x²=11²

x²=11²/2

x=11/√2=11√2/2≈7.78

7 0
3 years ago
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