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This is the answer
Answer:
x= -4.2+ y
Step-by-step explanation:
Answer:
<em>ab+bc+ca=0</em>
Step-by-step explanation:
We are given:
xyz=1
Separating equations:
Solving the first equation for x:
Solving the second equation for y:
Substituting in
xyz=1:
Adding the exponents:
Since 
:
The base is z on both sides so we get rid of them:
Multiplying by ab:
bc+ac+ab=0
Reordering:
ab+bc+ca=0
The correct option in A.
Lines 20-21 ("Nobody . . . died")
<h3>Briefing:</h3>
Nobody has succeed in this thing , and many have died.
This line belong to the 20-21 line for the phrase When fictional Swedish scientist went to the north pole for set up hydrogen- powered balloon.
<h3>Who is Swedish scientist ?</h3>
Only hydrogen offers helium-like lift; in fact, hydrogen offers 7-8% more lift than any other gas. In atmospheric sounding balloons outside of North America, hydrogen is frequently employed.
<h3>What is hydrogen- powered balloon?</h3>
Arrhenius, who was originally a physicist but is frequently referred to as a chemist, was one of the pioneers of the field of physical chemistry. He was the first Swedish Nobel laureate when he won the Chemistry Prize in 1903.
<h3>Why did they stop using hydrogen in balloons?</h3>
Despite being lighter than air, hydrogen is flammable, and since oxygen is present in the air, there is a chance of an explosion and fire. Since helium is a non-combustible gas and lighter than air, it is frequently used to fill balloons.
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