HELP ME
2 answers:
Answer:
Option B is correct.
The best first step for solving the given system using substitution while avoiding fractions:
Solve for y in the first equation
Step-by-step explanation:
Given the system of equations:
.....[1]
.....[2]
We can write equation [1] as:
Using substitution substitute equation into [2] we have;
Therefore, the best first step for solving the given system using substitution while avoiding fractions is:
Solve for y in the first equation.
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Is BC=2.3 one of the options?
For that question, you can use the cosine rule, where;
In this case, we have..
Solving for BC with this will get you 2.250406, rounded off to the tenth is 2.3.
For that question, you can use the cosine rule, where;
In this case, we have..
Solving for BC with this will get you 2.250406, rounded off to the tenth is 2.3.