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3 years ago

Is 6.43 a rational number?expain

1 answer:

7 0

A rational number is any number that can be turned into a fraction, as 6.43 can be expressed as 643/100 or 1286/200, etc..., it is a rational number.

Rationals include: Whole numbers ( positive numbers , excluding fractions) , integers ( postivie and negative numbers , excluding fractions), fractions, and infinite decimals that repeat ( example 0,3333... can be expressed as 1/3 so it is a rational)

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11) If A = {19, 20, 21, 24} and B = {17, 19, 20, 22), list the elements of A U B.

Elodia [21]

Answer:

A U B = {17, 19, 20, 21, 22, 24}

Step-by-step explanation:

The symbol U is the union symbol, which denotes the union of two sets.

This means that given two sets A and B, the expression

A U B

indicates all the elements that belong to either set A or set B.

In this problem, we have the following two sets:

A = {19, 20, 21, 24}

B = {17, 19, 20, 22}

We can therefore list all the elements belonging to either set A or set B, they are:

17, 19, 20, 21, 22, 24

So, the expression A U B indicates the set:

A U B = {17, 19, 20, 21, 22, 24}

3 0

3 years ago

name three different pairs of fractions that have the same product when multiplied .explain how you got your answer

Deffense [45]

$\frac{5}{10}*\frac{10}{40}=\frac{50}{400}$
$\frac{2}{8}*\frac{2}{4}=\frac{4}{32}$
$\frac{1}{4}*\frac{1}{2}=\frac{1}{8}$

$\frac{1}{8}$ is obtained by multiplying $\frac{1}{2}$ and <span> $\frac{1}{4}$
</span>You basically create equivelant fractions for both 1/2 and 1/4 and multiply by each other. This way you get the same result always.

8 0

3 years ago

Here are the numbers of times 10 people ate out last month 5,5,4,4,4,3,5,6,5,4, find the modes of this data set

katrin [286]

Answer:

4 and 5

Step-by-step explanation:

5 0

3 years ago

What is the area of the

kap26 [50]

32 is the answer-
A=bh
A= 8*4
32

3 0

2 years ago

On Saturday you spent $33, give me $15 to a friend, and receive $20 for mowing your neighbors lawn. You have $21 left. Use two m

Lemur [1.5K]

Answer:

Step-by-step explanation:

M = 33+15+21-20

M = 49

Day started with $49

#1. 49-33=16

#2. 16-15=1

#3. 1+20=21

So basically if you do a step by step process you will most likely get $49

6 0

3 years ago