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mr Goodwill [35]
3 years ago
9

Is 0.8 a rational number

Mathematics
2 answers:
Svetach [21]3 years ago
7 0
Hello!
0.8 is a rational number since it can be portrayed as a ratio of two integers.
0.8 = 8/10  8/10 = 4/5
Hope this helps! 
Ierofanga [76]3 years ago
5 0
Yes. If you can express it as a fraction (=ratio) then it is rational. 0.8 is the same as 8/10.
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A lorry is travelling at an average
Montano1993 [528]

Answer:

Step-by-step explanation:

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3 years ago
So i don't understand how factoring equations work in algebra 1
telo118 [61]

Answer:

this will help https://www.google.com/search?q=factoring+equations&oq=factoring+equations&aqs=chrome..69i57j0l6j69i61.464j0j7&sourceid=chrome&ie=UTF-8#kpvalbx=_w9Z8XvnVCsq7tgXx3SM51

Step-by-step explanation:

its in the video https://www.google.com/search?q=factoring+equations&oq=factoring+equations&aqs=chrome..69i57j0l6j69i61.464j0j7&sourceid=chrome&ie=UTF-8#kpvalbx=_w9Z8XvnVCsq7tgXx3SM51

7 0
3 years ago
Read 2 more answers
What is 9 copies of 3.65
Nataly_w [17]
I believe that you are doing multiplication with this.

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Hope this helps. :)
3 0
3 years ago
I have a LCM and GCF homework can someone help i dont understand??
Sindrei [870]
Alright,

So LCM stands for "least common multiple"
While GCF is "greatest common factor"

Let's look at your number 1 (3&6)

3,6,9,12
6,12,18,24

Both times table has 6 in them making 6 the LCM

To find the GCF we need to know what can go into 3 equally. Since 3 is prime the greatest factor for 3 is....3. 6 goes into 3 two times so 3 is the GCF.

LCM:6
GCF:3

Lets do number 10 (40&4)

For LCM you see whats the smallest number that is in both times tables

4,8,12,16,20,24,28.......40
40,80, 160....

40 is the LCM because 40 is what's the smallest number between the two

GCF?

4 times 1 equals 4. Nothing bigger than 4 can make 4 (if your multiplying). That makes 4 automatically the GCF. :)
6 0
3 years ago
True or False. To select 3 items out of 4 distinct objects, use C(4,3).
kenny6666 [7]

Answer:

True.

Step-by-step explanation:

C(4, 3) means the number of combinations from 4 items taking 3 at a time.  We are selecting 3 distinct items and it doesn't say anything about the order in which they are selected , so we use  a combination formula  not a permutation ( where order does matter).

C(4, 3)  = 4! / 3! 1!

= 4*3*2*1 / 3*2*1*1

= 4.

There are 4 ways to select 3 items from 4.

6 0
3 years ago
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