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Colt1911 [192]
3 years ago
11

PLEASE HELP ME SOLVE!!!!

Mathematics
1 answer:
bekas [8.4K]3 years ago
4 0

Answer:

Option C. 0.7x10^2 moles

Step-by-step explanation:

1mole of a substance contains 6.02x10^23 atoms as discovered from Avogadro's hypothesis.

If 1 mole of Ne contains 6.02x10^23 atoms,

Therefore, Xmol of Ne will contain 4.2154x10^25 atoms i.e

Xmol of Ne = (4.2154x10^25)/6.02x10^23 = 70moles = 0.7x10^2 moles

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Which transformation will create an image of the regular Hexagon ABCDEF that coincides with itself?
SIZIF [17.4K]

Answer:

reflection of ae

Step-by-step explanation:

b=a

e-d and it just flips

5 0
3 years ago
Solve the system graphically:<br><br><br> b <br><br> x−y=0<br> 2x+3y=−5<br> x=<br> y=
vlabodo [156]

Answer:

(-1,-1)

Step-by-step explanation:

x=y

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6 0
3 years ago
Samantha bought 26 total fish. Each goldfish cost $3 and each guppy costs $4. She spent $86 total. How many guppies did she buy?
Alex787 [66]

Answer:

goldfish is 15 and guppies is 11

Step-by-step explanation:

Given data

let the number of goldfish be x

and the number of guppies be y

so

x+y= 25----------1

and

3x+4y= 86-------2

solve 1 and 2

x+y= 25

3x+4y= 86

from 1

x= 25-y

put this in 2

3(25-y)+4y= 86

75-3y+4y= 86

75+y= 86

y= 86-75

y=11

put y= 11 in 1

x+11= 26

x= 26-11

x= 15

Hence goldfish is 15 and guppies is 11

5 0
3 years ago
Solve -8x &lt; 2.<br> A- <br> B<br> C<br> D
Anarel [89]

-8x <2

-8x÷2=4x

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hope it helps

4 0
3 years ago
For the real-valued functions f(x)=2x+3 and g(x)=√x-5, find the composition fog and specify its domain using interval notation.
Burka [1]

Find fog

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For real range the domain

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  • x≥5

Domain is [5,oo)

7 0
2 years ago
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