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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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Sandeep uses 1/5 of a cup of vinegar in his salad dressing recipe. How much vinegar would Sandeep use to make 4/5 of a recipe?
Westkost [7]

Answer:

4 /25

Step-by-step explanation:

Given that :

Cup of vinegar used per recipe = 1/5 cup

Amount of vinegar to be used for 4/5 of a recipe ;

1 cup recipe = 1/5 cup vinegar

4/5 cup recipe = x

Cross multiply :

x = 1/5 * 4/5

x = 4/25 cup

Hence, Sandeep will use 4/25 cup of vinegar

6 0
3 years ago
17.4 x 1.0 Will the product be less than 17.4, equal to 17.4, or greater than 17.4? 17.4 × 0.98 Less than 17.4 Equal to 17.4 Gre
nikdorinn [45]

Answer:

1) Equal to 17.4

2)Less than 17.4

Step-by-step explanation:

One thing we must always remember that when we have number 0 after the decimal point, it means we do not need to consider that as it will have no effect on product and on the other operations.

So,

1)

17.4 x 1.0 = 17.4 x 1 = 17.4  (Product is equal to 17.4)

2)

Suppose if a number 'A' which is less than 1 is multiplied by any other number 'B', than the multiplication always result in the number less than B.

For example:

1x0.5 = 0.5 which is less than 1

Similarly for

17.4 x 0.98 = Result will be less than 17.4 as the second number is less than 1.

Product is less than 17.4

3 0
3 years ago
Which number line shows the sum of -8, 4, and -2?
kompoz [17]

Well there's no image but the sum of -8 and 4 is -4. Then -4+-2 is -6. If that helps anything.

6 0
3 years ago
What's the difference between Area and Volume? Explain
ludmilkaskok [199]

Answer:

An area is length times the width.

A volume is length x width x height

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
A volleyball of radius 13 inches fits exactly in a cylinder with the same radius. inside the container there is empty space not
asambeis [7]

Volume of Sphere is V=(4/3)*PI*r^3

The radius of the volleyball is 13 inches

<span>So V=(4/3) * 3.14 * 13^3 =  9198 cubic inches</span>

 

Volume of a cylinder is V=pi * r^2 *h

Since they say the ball fits perfectly

The radius is 13 and the height is 26 ( the diameter of the ball)

So V=3.14 * 13^2 * 26 = 13,797 cubic inches

 

13797 – 9198 = 4,599 cubic inches of empty space


4 0
3 years ago
Read 2 more answers
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