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3 years ago

Which statement below returns 'soccer'?

Computers and Technology

1 answer:

Ivenika [448]3 years ago

4 0

Answer:

The answer is the second option.

sports = {2: 'football', 3:'soccer', 4:'volleyball', 5:'softball'};

console.log(sports[3]);

will output:

soccer

Explanation:

There were several syntax errors in the code (assuming it is javascript):

- Text strings must be enclosed in single or double quotes.

- sports is an object, not an array, so it should have { } and not [ ]

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3 years ago

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3 years ago

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Sometimes data you export from Access needs to be formatted as a text file instead of an Excel file.

g100num [7]

Answer:

b. False

Explanation:

Microsoft access is a database management application that can store data that can be queried from every other microsoft applications like Word, Access, Onenote etc. its attachments can be converted to best best suit the application or client that needs the file or data.

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3 years ago

Which of the following code displays the area of a circle if the radius is positive? Question 4 options: if (radius <= 0) Sys

Marina CMI [18]

Answer:

(d) if (radius > 0) System.out.println(radius * radius * 3.14159);

Explanation:

Given

Code segment (a) to (d)

Required

Which is correct

Code segment (a): radius <=0

This means that radius is 0 or less, i.e. 0 or negative

Code segment (b): radius !=0

This means that radius is not equal to 0 i.e. it could be positive or negative but definitely not 0

Code segment (c): radius >=0

This means that radius is 0 or greater, i.e. 0 or positive

Code segment (d): radius >0

This means that radius is greater than 0 i.e. positive

Hence, (d) is correct

3 0

3 years ago

Use the set A = { a, b, c ,d } to answer the following questions.

Gekata [30.6K]

Answer:

What is the cardinality of A? 4

What is the power set of ℘(A)?

P(A) = {Ф, {a}, {b}, {c}, {d}, {a,b}, {a,c}, {a,d}, {b,c}, {b,d}, {c,d}, {a,b,c}, {a,b,d}, {b,c,d}, {a,c,d},{a,b,c,d}}

What is the cardinality of the power set? 16

What is the power set of A = { }? => {{ }} or {Ф

Explanation:

Given set is:

A = {a,b,c,d}

What is the cardinality of A?

The cardinality of set is the number of elements in the set

Since, set A has four members the cardinality is 4.

i.e.

n(A) = 4

What is the power set of ℘(A)?

The power set of a set consists of all the subsets of a set.

So the power set of A will consist of all subsets of A.

The power set is:

P(A) = {Ф, {a}, {b}, {c}, {d}, {a,b}, {a,c}, {a,d}, {b,c}, {b,d}, {c,d}, {a,b,c}, {a,b,d}, {b,c,d}, {a,c,d},{a,b,c,d}}

What is the cardinality of the power set?

The number of subsets of a set is the cardinality of power set.

As A is 4 members,

Cardinality of Power set of A = 2^4 = 16

What is the power set of A = { }

As A is an empty set, its power set will have only one element (Ф) as member

P(A) = {{ }} or {Ф}

Hence,

What is the cardinality of A? 4

What is the power set of ℘(A)? P(A) = {Ф, {a}, {b}, {c}, {d}, {a,b}, {a,c}, {a,d}, {b,c}, {b,d}, {c,d}, {a,b,c}, {a,b,d}, {b,c,d}, {a,c,d},{a,b,c,d}}

What is the cardinality of the power set? 16

What is the power set of A = { }? => {{ }} or {Ф

6 0

3 years ago