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Burka [1]
4 years ago
7

Materials with covalent or ionic bonds tend to be more easily scratched.

Mathematics
2 answers:
PtichkaEL [24]4 years ago
8 0

Answer:

Covalent bond

Step-by-step explanation:

Ionic bond: It is that type of bond  which is formed between two atoms by loss or gain of electrons.

Ionic bond is formed between metal and non- metal atom.

Covalent bond: It is that type of bond which is formed by sharing of electrons. It is formed between two non- metal atoms.

Ionic bond is stronger than the covalent bond due to  coulombic attraction of oppositely charged ions.

Material with covalent bond tend to be more easily scratched because the molecules can easily be  pulled away from each other in covalent bond.

Answer: Covalent bond

timofeeve [1]4 years ago
5 0
Pretty sure it's covalent
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Put in a new
mr_godi [17]

Answer:

$110

Step-by-step explanation:

The first step would be to multiply 11 and 5 to get the result of 55.

Then, you would multiply 55 by whatever the cost per square yard is, which in this case is $2.

Finally after multiplying 55 and 2 you would get the answer of $110.

Hope this helped! Have a great day! :)

3 0
3 years ago
Describe two different strategies you could use to add 16 + 35 + 24 + 14.​
Vinil7 [7]

Answer:

1. Make a table

2. Combine numbers

Step-by-step explanation:

First what you need to do is make a table making 2 columns, then name them tens and one. Put the tens place in the tens column and put the ones place in the ones column. Then, put all the numbers mentioned (16, 35, 24, 14) in the table and add the tens then add the ones!

Another strategy you can use is combining numbers. With 35 and 16 you can combine them to make 51. Then combine 24 and 14 to make 38. Then you add 51 and 38 to get 89.

I hope this helped your homework!

7 0
2 years ago
Solve the problem.
skad [1K]

Answer:

The population reaches 42,336 fish in 2258

Step-by-step explanation:

<u>Given</u><u>:</u>

P =  0.62x^2 - 0.043x + 3

<u>To Find:</u>

Time taken  to reach 42,336 = ?

<u>Solution:</u>

According to the question  x is the number of years after which the population .

Then

42336 = 0.62x^2 - 0.043x + 3

0 = 0.62x^2 - 0.043x + 3- 42333

0.62x^2 - 0.043x -42333 = 0

Solving using quadratic formula

x =\frac{ -b\pm \sqrt{b^2 -4ac}}{2a}

x =\frac{ -(-0.043)\pm \sqrt{(-0.043) -4(0.62)(42333)}}{2(42333)}

x =\frac{ -(-0.043)\pm \sqrt{(0.001849) -0.10664}}{84666}

x=261.337                    x=−261.268

Neglecting the   negative value we get

x = 261.337

x =  261 approx

261 years after  1997  =  2258

5 0
4 years ago
The table represents a linear function.
Pavlova-9 [17]
Using two points to find the slope use
y2-y1/x2-x1
i chose points (0,4) and (2,14)
14-4/2-0
10/2
5
The slope is 5
8 0
3 years ago
What are the domain and range of f(x)=−1/5(x−16)2+49?
maxonik [38]

Answer:

(-infinity, infinity)

(-infinity, infinity)

Step-by-step explanation:

for both

6 0
3 years ago
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