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kozerog [31]
3 years ago
5

Which contribution is a modification to Dalton's original atomic model?

Mathematics
2 answers:
VMariaS [17]3 years ago
7 0

The answer is B.

<em>At the time, Dalton didn't know anything about electrons. </em>

ahrayia [7]3 years ago
3 0
C
this is because i randomly guessed on ym test and got it right.
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Which is equivalent to √3/√8 when denominator is "rationalized"?
TEA [102]

Step-by-step explanation:

\dfrac{\sqrt3}{\sqrt8}=\dfrac{\sqrt3\cdot\sqrt2}{\sqrt8\cdot\sqrt2}=\dfrac{\sqrt{3\cdot2}}{\sqrt{8\cdot2}}=\dfrac{\sqrt6}{\sqrt{16}}=\dfrac{\sqrt6}{4}

<h3>Used:</h3>

\sqrt{ab}=\sqrt{a}\cdot\sqrt{b}\ \text{for}\ a\geq0\ \wedge\ b\geq0\\\\\sqrt{a}=b\iff b^2=a\ \text{for}\ a\geq0\ \wedge\ b\geq0\\\\\sqrt{16}=4\ \text{because}\ 4^2=16

4 0
3 years ago
Why is a number raised to the zero power ALWAYS one and never any other number?
alexdok [17]

Do you know how to simplify, let's say for example,    x⁵/x²  ?

When the bases are the same, you can just subtract the exponent in
the denominator from the exponent in the numerator.  So  x⁵/x² = x³ .

Now look at  x⁷/x⁷ .  From that same handy tip, x⁷/x⁷ = x⁰ .

BUT ... any fraction with the same number on top and bottom
is equal to ' 1 '.  So  x⁰ = 1 , no matter what 'x' happens to be.

Does that do anything for you ?


5 0
3 years ago
Cal added 2 3/8 cups of raisins. Write this number as a fraction greater than 1 in simplest form.
xxTIMURxx [149]
2\frac{3}{8}=2(\frac{8}{8}) +\frac{3}{8} = \frac{16}{8} +\frac{3}{8} = \frac{19}{8}
8 0
3 years ago
Justin has ​$28 to buy a gift for his​ cousin, Julianne. He found a gift for ​$25. With 7​% sales tax added​ on, will Justin hav
motikmotik

Answer:

yes he will pay 26.75

Step-by-step explanation:

25×.07=1.75 25+1.75=26 75

4 0
3 years ago
Read 2 more answers
Pls help me solve these
likoan [24]

The conversion of 9.204 to a mixed number will be 9 51/250.

<h3>How to illustrate the information?</h3>

It should be noted that converting decimal to mixed numbers simply means changing them to whole numbers and fractions.

Therefore, 9.204 will be:

= 9 204/1000

= 9 51/250

The percentage equivalent of 3 7/8 will be:

= (3 × 100) + (7/8 × 100)

= 300 + 87.5

= 387.5%

Dividing 72 in the ratio 2:3:4 will be:

= 2/9 × 72 = 16

= 3/9 × 72 = 24

= 4/9 × 72 = 32

Learn more about decimals on:

brainly.com/question/1827193

#SPJ1

6 0
2 years ago
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