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Nata [24]
4 years ago
15

1) Elevii unei clase au schimbat intre ei fotografii , astfel ca fiecare elev a primit cate o fotografie de la toti colegii sai.

Aratati ca numarul de fotografii este par. Creterii de divibilitate cu 2,5 si 10^n 2) Fie numerele 42,688,32,15,126,1114,71,3012,455,125,112,60,14,751,10,20,45,300,126,500,520,1700,430. Scrieti numerele care sunt divizibile cu . a)2 b)5 c)10 3) Care este cel mai mare numar natural de patru cifre diferite divizibile cu 2? Dar cu 5? Dar cu 2 si 5 ? Urgent
Mathematics
1 answer:
Schach [20]4 years ago
8 0
Get the app Photomath !
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PLEASE HELPPPP MEEE!!
Jet001 [13]

Answer:

i think its A but not %100


Step-by-step explanation:


3 0
3 years ago
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How do you factor 8x+56?
Aleksandr [31]
If you mean how do you get x by it's you divide both sides by 8, to cancel out the multiplication between x and 8, meaning that it would end up being x=7, sorry if that didn't answer your question correctly. 
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4 years ago
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Round each number to the nearest ten. What is the best estimate for the answer to 343.42 – 39.87?
Dafna11 [192]
The original answer for that question would be 303.55. The best estimate when you round to the nearest tenth the approximate answer would be 303.6 because the 5 in the hundredths place rounds the 5 in the tenths place to a 6. So the approximate answer would be 303.6....hope this helps. 
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3 years ago
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I have no clue how to do any of these problems so if anyone knows any an explanation would be nice.
Sever21 [200]
#1).  The length of the whole circumference is (π · D) = 12π .

         120° is 1/3 of 360°, so arc-AB is 1/3 of the whole circumference.

#2).  60° is 1/6 of 360°.
         So arc-CD is 1/6 of the whole circumference (which is given).

#3).  The circumference of the circle is (π·D) = 20π .

         70° is (70°/360°) of the whole circle, so arc-XY
         is  (70/360) of the whole circumference.

#4).  Sorry, I don't remember anything right now about
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         I hope what I've given you so far is worth 5 points.
7 0
3 years ago
Which expression is equivalent to 15+3x<br> A) 3(5+x)<br> B) 5(3+x)<br> C) 3(5+3x)<br> D) 5(3+3x)
4vir4ik [10]

Answer:

3(5+x)

Step-by-step explanation:

15+3x

5*3 + 3*x

Factor out 3

3(5+x)

7 0
3 years ago
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