The value of P(fc and u) is 0.09
From the complete question, we have the following highlights:
- A total of 200 participants were surveyed.
- 18 of the survey participant's first motor vehicle had four cylinders and the participant’s first motor vehicle was an SUV.
These mean that;
So, the value of P(fc and u) is calculated using:
This gives
Divide 118 by 200
Hence, the value of P(fc and u) is 0.09
Read more about probabilities at:
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Answer:
The best testing strategy I have when it comes to multi choice is
if there are 4 answers ...2 of them you can easily eliminate with no problem. Then you have 2 more answers left and you find facts about each on and which one best relates to the question then boom. Oh and also always check for spelling and grammar in the answers because it will be wrong if its not correct.
The substance that is not approved for chemical sanitizing after washing and rinsing is detergent.
<h3>What is a sanitizer?</h3>
A sanitizer refer to a liquid chemical composition which is applied to the hand after washing and rinsing to remove dirt's and kills germs that may be present in the hand.
Therefore, The substance that is not approved for chemical sanitizing after washing and rinsing is detergent.
The question is incomplete, below is the completed part and options gotten from brainly website.
Quaternary ammonium
Chlorine
lodine
Detergent
Learn more about sanitizer below
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Answer:
what chemicals are the sun made of
Like any star in its prime, the sun consists mainly of hydrogen atoms fusing two by two into helium, unleashing immense energy in the process. But it's the sun's tiny concentration of heavier elements, which astronomers call metals, that controls its fate.
Explanation:
The amount of grams of hydrogen that are in the water sample is;
3.985 g
<h3>Avogadro's number</h3>
We are given that;
Number of moles of oxygen in a sample of water = 12 × 10²³
- Now, the chemical formula of a molecule of water is H₂O. This means that for every 1 atom or molecule of oxygen, there must be 2 hydrogen atoms or molecules present.
Since Number of moles of oxygen in the sample is 12 × 10²³, then number of moles of hydrogen will be twice that = 2 × 12 × 10²³ = 24 × 10²³ moles
Now, molar mass of hydrogen is 1 g/mol and we know that;
Molar mass = Avogadro's number(6.023 × 10²³) moles
Thus;
6.023 × 10²³ moles = 1 g/mol
Thus; 24 × 10²³ moles of hydrogen = ( 24 × 10²³ × 1)/(6.023 × 10²³)
⇒ 3.985 g
Read more on Avogadro's number at; brainly.com/question/914267
