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Sunny_sXe [5.5K]
3 years ago
7

If an atom has 18 positively - charged protons and 18

Mathematics
1 answer:
Aneli [31]3 years ago
7 0

Answer:

THE TOTAL CHARGE WILL BE ZERO.

Step-by-step explanation:

BECAUSE ATOMS ARE NEUTRAL WHEN THE PROTONS AND ELECTRONS HAVE THE SAME CHARGE

HOPE THIS HELPS YOU IF IT DID PLZ CLICK ONTO THANKS AND MARK AS BRAINLIEST

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Prove that for every pair of integers m and n, if n − m is even, then n 2 − m is also even. (You may freely use the fact that th
Romashka [77]

Answer with Step-by-step explanation:

We are given that  n and m are two integers

We have to prove that if n-m is even , then n^2-m is also even.

We know that sum of two odd numbers is even.Sum of an odd number and even number is odd.

Product of an odd number and even number is even.

Case 1.Suppose m and n are both even n=4 , m=2

4-2=2

(4)^2-2=14 =Even

Case 2.Suppose m odd and n odd

n=9,m=5

9-5=4

(9)^2-5=76=Even

Hence, proved.

7 0
3 years ago
What is 3 times 1/3 and subtract 5
lukranit [14]
3* ( 1/3 -5)= -14 hope this helps
7 0
3 years ago
Read 2 more answers
Mary and ann made drinks for a picnic. one used 3 cans juice concentrate and 8 cans water. the other 5 cans juice concentrate an
Sveta_85 [38]


I would think that it would be the 3:8 one because if you do the math, 8-3 is 5 and 12-5 is 7. The only reason Im doing it this way is because its the only way I can set it up.

so you have more of a difference with the 12:5 one and less of a difference with the 3:8.

I hope I helped a bit


4 0
3 years ago
A librarian knows that 45% of the books currently checked out will NOT be returned on the due date. The library has a
malfutka [58]

Answer:

79 books

Step-by-step explanation:

45% books not returned = 55% books will be returned

145 books currently checked out

55% of 145 = 79.75

since you can't return 3/4 of a book, i would round down to 79.

7 0
4 years ago
What is the slope of a line that is perpendicular to a line whose equation is 3y=−4x+2 ?
charle [14.2K]
The slope of the given line is -4/3. the slope of any perpendicular line is the negative reciprocals, or 3/4
8 0
4 years ago
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