Answer:
f(3)=11
Step-by-step explanation:
given f(x)=4x-1.............(1)
put x=3
f(3)=
-1
f(3)=12-1
f(3)=11 answer
Im pretty sure that you could, but i would have to see the triangles.
The answer is: B, They are an investment in a company's progress and profits.
When people buy stocks from a company, those people basically buy a part of ownership of that company. As the company progress and obtain profits, the holders of the stocks are entitled to some percentage of the dividend that company announce for each stock.
A biased example: Asking students who are in line to buy lunch
An unbiased example: Asking students who are leaving/going to lunch(<em>NOT buying </em><em>lunch</em><em />).
But in this case, the answer choices can be... confusing.
Don't panic! You're given numbers and, of course, your use of logic.
Answer choice A: 100 students grades 6-8
Answer choice B: 20-30 students any <em>one</em> grade<em></em><em>
</em>Answer choice C: 5 students
<em></em>Answer choice D: 50 students grade 8
An unbiased example would be to choose students from <em>any grade.</em> So we can eliminate choices B and D.
Now, the question wants to <em>estimate how many people at your middle school buy lunch.</em> This includes the whole entire school, and if you are going to be asking people, you aren't just going to assume that if 5 people out of 5 people you asked bought lunch, the whole school buys lunch.
So, to eliminate all bias and/or error by prediction, answer choice A, the most number of students, is your answer.
