Nơi chia sẻ tri thức, kết nối cộng đồng và giải đáp mọi thắc mắc từ A–
Nơi chia sẻ tri thức, kết nối cộng đồng và giải đáp mọi thắc mắc từ A–
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Une petite fille vraiment très laide va commander un gâteau à la boulangerie pour l'anniversaire de sa petite sœur. La boulangère, émue par cette petite fille ...
What's the difference between “on earth” and “on the earth”?
The “the” is optional. “On earth” usually means the total range of humanity's natural existence. We are born, walk, eat and live upon the ...Read more
Is it acceptable to use 'more easy' instead of easier in ...
SHORT ANSWER: With most verbs, you should use “more easily”. But after some verbs, like “be” or “become”, you use “easier”.Read more
Have you ever experienced absolute silence? If so, what ...
The feeling of experiencing something that you can't put into words, gives you a sense of longing for something inexplicable. It is like a ...Read more
I need complete silence. How can I achieve that?
To create complete silence, consider using noise-canceling earplugs or earmuffs. Techniques like white noise machines or soundproofing can also ...Read more
What are the roots of the equation: [math]x^5=1[/math]?
First off, we can observe that this equation has exactly one real root. This is because the function f(x)=x5+5x3+5x−1 f ( x ) = x 5 + 5 x 3 + 5 ...Read more
What is the solution of the equation 3x-9=0?
add 3 to both sides in order to isolate the radical. Then square both sides. The result is x-9=9, so x=0.Read more
The limit of (1/n), as n goes to infinity is zero, but ( ...
The way I see it is via the Weierstrass definition on limits. Basically, when you say a sequence [math]
What does it mean when someone says that you should ...
“Follow the money” simply refers to someone having more money than can be normally explained. Crime is a profit driven enterprise, so if someone ...Read more
What does 2.5mA mean?
2.5 mA is just 2.5 milliamps. ... It means your battery can supply 2.5A for an hour or similarly 5A for 1/2 an hour or 1.25A for 2 hours etc.Read more
Test your IQ: If {5, 3} = 28, {9,1} = 810, {8,6} = 214, and { ...
... 5+3 = 28 ---> {First Digit (5-3)}{Second Digit Onwards(5+3)} --> 2,8 9+1 = 810 ---> {F...
If 5,3=28 and 7,6 =55 and 4,5=21 what is 3,8?
Well, all of these are derived from the square of the first number added to the second number. For instance 5,3= 5^2 +3=28. So, 3,8 would be 3^2 ...Read more
What are the distinctions between 'Ring somebody up' ...
To “ring up” is very BRITISH, while “to call” is more AMERICAN. In England, if a person says: I'll ring you” it mean that this person will PHONE ...Read more
What is the difference between 'happy for someone' and ' ...
To be “happy for” someone means that they have a good opportunity, or something else good has happened to them, and you are rejoicing with ...Read more
What is C2H4 from CH4?
CH4 is the chemical formula for Methane. Four Hydrogen atoms covalently bonded to one Carbon atom. Covalently bonded substances exist as ...Read more
Which is grammatically correct: “The ship sank” or “ ...
“The ship sank” is correct, because this is a simple past tense. In order to use “sunk,” you must include an auxiliary verb, such as “the ship has sunk in 120 ...Read more
What is the purpose of sodium hydroxide in soap? ...
(RCOO)3C3H5 + 3 KOH → 3 RCOOK + C3H5(OH)3. The sodium salt and the potassium salt will have similar but not identical physical properties.Read more
How to prove that sin2A + sin2B + sin2C = 4sinAsinBsinC ...
In a triangle ABC, the sum of all internal angles is equal to 180 degrees. A + B + C = 180, implying that 2A + 2B + 2C = 360.
How to be lucky in money
The best way for you to increase your luck with money is to disperse the amount of capital that you have to those in need. One's intent to ...Read more
'I would buy anything I wanted or want' Do we use first or ...
That's part of of the second conditional of English ex: if I have money I would buy anything that I want. Remember the THAT CLAUSE is implied ...Read more
What are the genotypic ratios from the F2 generation when ...
From the cross Aa X AA, the F1 generation will consist of 1/2 Aa and 1/2 AA. When this F1 generation is randomly mated, 1/4 of the matings ...
Which one is correct? 'I was fired' or 'I got fired'?
“I got fired” is just one past tense: the auxiliary verb “got” (in past tense) and a past participle “fired”.Read more
Which is correct: 'He got fired' or 'he got fire'?
No, it's not correct to say “He was got fired.” You have to choose one verb or the other—”He got fired” or “He was fired.” Either one is correct ...Read more
How close to closing time can one show up at a restaurant ...
If a restaurant closes at 9, does that mean that they're hoping you'll show up to give them money at 8:59; or are they hoping to start cleaning ...Read more
AaBb was crossed with aabb. What could be ...
When AaBb crossed with aabb then , AaBb produces 4 types of gamates ie AB, Ab, aB and ab etc. And aabb produces only one type of gamate ie ab.Read more
How many grams are there in 0.05 kilogram?
kilo = 1000 whatever unit that it is attached to. So 1 kilogram = 1000 grams. 0.05 x 1000 = 50. So 0.05 kilogram = 50 grams.Read more
What is 2 *5/5?
So, \(2.5/5 \times 2.5 = 1.25\). Your response is private. Was this worth your time? This helps us sort answers ...Read more
How to calculate this chemical equation? H2O2 + KMnO4 + ...
How do I balance H2O2 + H2SO4 + KMnO4 ---> MnSO4 + O2 + K2SO4 + H2O? If possible, include the steps, thank you.Read more
What type of chemical reaction is BaCl2 + H2SO4?
It is a precipitation reaction as the barium ion attaches to the sulfate ion to form barium sulphate which precipitates out of solution ...
Why can't the word 'open' be 'openning' like 'swimming'?
If the stress in “open” was on the second syllable, then indeed it would be. For example: “to pen” becomes “penning”.Read more
How to integrate Sin2xcos3x
What is the integration of sin2xcos3x by the substitution method? \\ I = \displaystyle\int \sin 2x \cdot \cos3x \cdot \mathrm dx \qquad = \ ...Read more
What happens when ammonium nitrate reacts with ...
NH3(g) + HCl(g) = NH4Cl · Change in Free Energy: ΔG(20C) = -92.8kJ (negative, so the reaction runs) · Change in Enthalpy: ΔH(20C) = -176.4kJ ( ...Read more
How to balance this reaction equation: H2O2 (aq) +MnO4 ...
First we must assign an oxidation number to each element: Reactants: H2O2 = H(+1) O(-1), MnO4- = Mn(+7) O(-2), H+ = H(+1) Products: O2 ...
If sinx + sin2x = sin3x, what is x?
You can write sin 2x = 2 sin x cos x and sin 3x - sin x = sin x cos 2x + cos x sin 2x - sin x = sin x cos 2x + 2 sin x cos^2Read more
How to ask to someone that is asking me for coffee, if ...
Just go up to him and say “Hey Mark, I'm thinking on grabbing a cup of coffee, you wanna come and hang out for a bit?”.Read more
How to ask someone to coffee without sounding like I am ...
just say 'it would be nice to chat sometime, how about a coffee?' · that is a no pressure invitation · but you should show romantic intent early ...Read more
What is the reason for some British people saying 'I'm from ...
What is the reason for some British people saying "I'm from London" instead of identifying as British or English? All related (50).Read more
What's the difference between “it is important to me”and “ ...
Both are correct. When I say important to me it means that it is of value to me. Important for me means that it is needed by me.Read more
What do I write in my blog post?
Start with a good hook. This can be a quote, fact, statistic or an interesting personal experience. Then add a sentence or two that sums up your ...Read more
Is Cotangent the inverse of tangent?
It depends on what you mean by “the inverse”. A reciprocal is also called a multiplicative inverse. Tangent is sine/cosine, and cotangent is cosine/sine.Read more
Which is correct, eaten or eating?
eaten is past participle form of the verb eat. · We use 'eaten' in the following contests: · I have just eaten the lunch . ( Present perfect tense) ...Read more
H2S + KMnO4 + H2SO4 = S + MnSO4 + K2SO4 + H2O ...
KMnO4 ionizes to give K+ and MnO4^- ions. MnSO4 ionizes to make Mn2+ and SO4^2- ions. It helps to know something about the solubility of ...Read more
What is the IUPAC name of CH3-CO-O-CH2-CH3?
IUPAC name of CH3-CO-O-CH2-CH3 is ethyl ethanoate. The alkyl group which is attached to oxygen is “ethyl” group and rest part of the ...
Is it 'people has' or 'people have'? Why?
'People have' is the correct one. 'People' is the plural form of 'person', and 'have' is the plural of 'has'.Read more
Are you a Vietnamese?
Yes, I'm from Vietnam. I can prove that I am from Vietnam:”Tui là người Việt Nam. Bạn có tin hay không là tuỳ ý bạn”Read more
What is the solution to the equation cosx + sin x = 1?
Good one! The solution set consists of those integer multiples of pi/2 where the integer multiple is congruent to either 0 or 1 modulo 4.
What is the chemical name for N2 + O2 = 2NO?
N2+O2=2NO. N2 means 1 mole of nitrogen gas, O2 means 1 mole of oxygen gas , 2NO means 2 moles of nitric oxide.Read more
What is the derivative of y=sinx-cosx?
Upvote ·. Related. What is the derivative of y= sin x + cos x/ sin x-cos x? Profile photo for Mike Xavier. Mike Xavier.Read more
How do we solve for x if sin(x) = 0.5?
sin(x)=0.5. Apply the inverse of sine, or arcsine, on both sides. x=arcsin(0.5). To evaluate arcsin(0.5), we need to find what value of sine ...Read more
What is the past tense of “good”?
According to grammetically, here good is either adjective or adverb. Since, there is no any past tense of word good because it is not a verb.Read more
What are the forms of the verb “good”?
The word "good" is an adjective, not a verb. It has no forms of a verb. Here are some examples of how to use the word "good" as an adjective:.Read more
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