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MariettaO [177]
3 years ago
10

Determine the cardinal number of A={2,4,6,8,10}

Mathematics
1 answer:
dimulka [17.4K]3 years ago
3 0

A cardinal number of a set is the number of elemenents it contains. Therefore the cardinal number of A is equal to 5.

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Let each Square represent 1/3 unit by 1/3 unit.
Varvara68 [4.7K]
(5/3)*(7/3) = 35*(1/3)²

The area is 35 square units.
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Find the mean, median, and mode of the data set. Round to the nearest
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Answer:

The answer is: mean = 80.8, median = 82.5, mode = 67

Step-by-step explanation:

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A researcher is studying the monthly gross incomes of drivers for a ride sharing company. (Gross incomes represent the amount pa
Reptile [31]

Answer:

The histogram of the sample incomes will follow the normal curve.

Step-by-step explanation:

According to the Central Limit Theorem if we have an unknown population with mean <em>μ</em> and standard deviation <em>σ</em> and appropriately huge random samples (<em>n</em> > 30) are selected from the population with replacement, then the distribution of the sample mean will be approximately normally distributed.

In this case the researches wants to determine the monthly gross incomes of drivers for a ride sharing company.

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Read 2 more answers
What is the area of the shaded region?
Mekhanik [1.2K]

9514 1404 393

Answer:

  434 -49π ≈ 280.1 cm²

Step-by-step explanation:

The shaded area is the difference between the enclosing rectangle area and the circle area.

The rectangle is 14 cm high and 31 cm wide, so has an area of ...

  A = WH

  A = (31 cm)(14 cm) = 434 cm²

The circle area is given by ...

  A = πr²

  A = π(7 cm)² = 49π cm²

__

The shaded area is the difference of these, so is ...

  shaded area = rectangle - circle

  = (434 - 49π) cm² ≈ 280.1 cm²

4 0
2 years ago
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