Looking at this, I think the easiest (personally) way to solve it would be using the Substitution method.
Meaning we have to rearrange ONE equation, to make ONE variable ( x or y) the subject.
(1) 2.5x + y = -2
(2) 3x +2y = 0
The first equation is the easiest to rearrange. Make Y the subject for (1).
Thus,
y = -2.5x - 2
Substitute this into equation (2).
∴ 3x + 2(-2.5x - 2) = 0
Expand and simplify:
3x - 5x - 4 = 0
∴ -2x - 4 = 0
Making x the subject:
-2x = 4
x = -2
From here, we need to substitute x=-2 into equation (1) or (2) to solve for the y-value. I would say the easiest way, would be to rearrange one, to make y the subject, which was what we did earlier.
Thus,
y = -2.5x - 2
y = ((-2.5(-2) -2)
y = 3
(X,Y) x = -2, y = 3
Answer: (-2,3)
I hope you followed through.
Answer:
The best advice to take the AP Calculus exam is to be calm and trust your knowledge.
Explanation:
To do this exam it is important first to clarify all your doubts, if you have any, before starting the exam.
If there is a subject that you do not master 100%, it is good to consult a teacher, or see an explanation on the internet.
You should also bear in mind that there are 45 questions and that the time you have to take the exam is 105 minutes, so you could as a personal goal try to answer each question in two minutes.
If a question is difficult for you, it is best to go ahead and leave that question to answer at the end.
An appropriate choice is ...
A. Decides that she will give it some more thought and do some research.
_____
In the real world, the most likely response will be B. The second most-likely response will be to ask the assistant to do the research. Another possible response is to make the counter-suggestion that e-mail, text, or social media reminders be used.
He says that he is rich and wealthy in that book. I might be reading the wrong thing, but that’s what it says
