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geniusboy [140]
3 years ago
12

Why are prefixes used in naming covalent compounds

Mathematics
1 answer:
Nataly_w [17]3 years ago
6 0

Answer:

the atoms can have different numbers of valence electrons

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If x=2,y=-3 and z=4, find the value of:<br> 3xy/2z
Aloiza [94]

Answer:  -2.25

Step-by-step explanation:

We plug in the numbers.

\frac{3xy}{2z}\\= \frac{3(2)(-3)}{2(4)}\\= \frac{-18}{8}\\= -2.25

3 0
3 years ago
1. whats 2/3 plus 1/9<br> 2. 5/7 plus 1/2<br> 3.7/15 plus 2/15
Oksana_A [137]

1. 5/9
2. 17/14
3. 9/15
7 0
4 years ago
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Please help me and show your work and i will mark you the brainliest!!!!!!!!!!!!
Aneli [31]
The area is 128

multiply the base by the height, and then divide by 2.

the base is 16 and the height is also 16 so 16x16 is 256 divided by 2 is 128
5 0
3 years ago
Please answer number 3
Elan Coil [88]

Answer:

1250

Step-by-step explanation:

?/5000 = 25/100 5,000x25= 125,000 divided by 100= 1250.00= 1250

8 0
3 years ago
There are 34 people going on a field trip. if each car holds 4 people. how many cars will we need?
ss7ja [257]

Answer:

9 cars

Step-by-step explanation:

A car holds 4 people

For 34 people :

34 ÷ 4 = 8 1/2

We canmot put 8 1/2 cars so it's 9. There will just be 2 extra seats.

4 0
3 years ago
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