What is the solution to the system of equations below?
2 answers:
Answer:
The answer is C
Step-by-step explanation:
Use the method of elimination
First rearrange the first equation to look like the second
Next add the two equations together eliminating the <em>y</em> term.
There's only one answer with x = 4 so you're done. To go further, substitute x = 4 into the second equation and solve for y
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Answer:
{r|r>0}
Step-by-step explanation:
Pressure is the amount of force exerted on a surface per unit area, P=F/A.
The pressure, in atmospheres (atms), of a liquid on the circular base of a bucket is represented by the composite function PoA(r), where P(A) = 375 / A and A (r) = pi r²
We know that the domain is the set of input values.
Pressure,
At r = 0, it becomes not defined.
It means that r can be any value that is greater than 0. Hence, the correct option is (c). i.e. {r|r>0}