The 1st one is the right answer
Answer:
Solving quadratic equations can be difficult, but luckily there are several different methods that we can use depending on what type of quadratic that we are trying to solve. The four methods of solving a quadratic equation are factoring, using the square roots, completing the square and the quadratic formula.
Step-by-step explanation:
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Answer:
x+3
Step-by-step explanation:
21=7x3. Hence answer is 3
The answer would be y=60.
I think.
Answer:
There is no graph
Step-by-step explanation:
Post the graph and I can help you.