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Gennadij [26K]
3 years ago
10

All of the following are solutions except?

Chemistry
2 answers:
Iteru [2.4K]3 years ago
6 0

Answer:

Heyy mate

Explanation:

fruit cake is the correct answer

Hope it helps

Vaselesa [24]3 years ago
5 0

Answer:

fruit cake is the right ans

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How can you increase the momentum of an object?
Elena-2011 [213]
I think its B because if u increase the mass itll have more force which will increase the momentum
5 0
4 years ago
Which polynomials, given in square inches, could represent the area of a square with whole number side lengths if x is a whole n
erica [24]

<u>Answer:</u> The correct answers are x^2-9\text{ and }x^2-100

<u>Explanation:</u>

To find the polynomials which could represent the are of a square having side x greater than 2, we need to find the value of 'x' for all the given polynomials.

From the given options:

  • 1. x^2-9

x^2=9\\x=\sqrt{9}\\x=3,-3

x = -3 is ignored.

  • 2. x^2-100

x^2=100\\x=\sqrt{100}\\x=\pm10\\x=10,-10

x = -10 is ignored

  • 3. x^2-4x+4

To solve this we use the quadratic formula:

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

Putting values of a, b and c, we get:

x=\frac{-(-4)\pm\sqrt{(-4)^2-4(1)(4)}}{2\times 1}\\x=2,2

As, x comes out to be 2 and is not greater than 2. Hence, this is not considered.

  • 4. x^2+10x+25

Solving for 'x' by splitting the middle term:

\Rightarrow x^2+5x+5x+25\\\Rightarrow x(x+5)+5(x+5)\\x=-5,-5

Hence, this is ignored.

  • 5. x^2+15x+36

Solving for 'x' by splitting the middle term:

\Rightarrow x^2+12x+3x+36\\\Rightarrow x(x+12)+3(x+12)\\x=-12,-3

Hence, this is ignored.

So, the correct polynomials are x^2-9\text{ and }x^2-100

3 0
3 years ago
Read 2 more answers
In an experiment, the molar mass of the compound was determined to be 118.084 g/mol. What is the molecular formula of the compou
Mrrafil [7]

Answer:

need more info

Explanation:

i think so we need more info

4 0
2 years ago
In electrophilic aromatic substitution reactions the hydroxyl group is an o p-director because?
Natalka [10]

In electrophilic aromatic substitution reactions the hydroxyl group is an o,p-director because: hydroxyl group donates the electron density to the ring by induction and destabilizes the meta sigma complex and  by resonance and it  stabilizes the ortho and para sigma complexes of aromatic ring .

Most ring activators have atoms with unshared electron pairs directly attached to a carbon atom of the benzene ring . For example, the — OH group has two pairs of unshared electrons on the oxygen atom , which will form a bond to a carbon atom of the benzene ring . Thus , the — OH group will be an activating group in electrophilic aromatic substitution reactions .

to learn more about electrophilic aromatic substitution reactions please click here ,

brainly.com/question/28286554

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5 0
2 years ago
Convert .0150 km to meters and express the correct significant figures
weeeeeb [17]
<h3>Answer:</h3>

15.0 meters

<h3>Explanation:</h3>
  • Kilometers are units used to measure length.
  • Length is also measured using other units which include meters, centimeters, decimeter, millimeter, etc
  • To convert one unit to another we use conversion factors.

In this case to know inter-conversion between units of measuring length, we consider the following;

Kilometer(km)

10

Hectometer(Hm)

10

Decameter(dam)

10

Meter (M)

10

Decimeter (dm)

10

Centimeter (cm)

10

Millimeter (mm)

Therefore, to convert km to meter we use the conversion factor (10×10×10) 1000 m/km.

Thus;

0.0150 km is equivalent to;

= 0.0150 km × 1000 m/Km

= 15.0 meters

Thus, 0.0150 km is equivalent to 15.0 meters.

4 0
3 years ago
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