Answer:
Step-by-step explanation:
The order of the top three are
In that order. Copper is used where there is some tolerance for corrosion for it much cheaper than the other two. Gold is used where corosion is a consideration because Gold does not tarnish. Silver is used when conductivity is the primary concern.
Aluminum was tried in house wiring. It is very brittle. I think it was abandoned.
AC and the length BC.
The length of AB is 7
The solution of the equation is given by (-2,-1), This is represented by option C.
<h3>What is a System of Equations?</h3>
A system of equations is a set of equation that have a common solution.
The solution of the equations can be determined by using the Elimination and Substitution method
3x-5y = -1
2x-y = -3
-7x = 14
x = -2
Substituting this value in the equation
3 * (-2) -5y = -1
-6 -5y = -1
-5y = 5
y = -1
Therefore, the solution of the equation is given by (-2,-1), This is represented by option C.
To know more about System of Equations
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Answer:
C is the correct answer
Step-by-step explanation:
Reflection kinda means like a mirror across the x-axis
in the picture below i labeled the x-axis's and cirlced the answer as well
sorry its not the best drawing but i tried
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Combine q terms
-30 = 12q - 10
Add 10 to both sides
-20 = 12q
Simplify
Q = -5/3
