Answer:
d. Ore treated with the new process.
Step-by-step explanation:
This is a common practice in statistics, in which we use a sample of a population to infer something about the entire population. We should use a sample of 100.
For example, if we want to know the proportion of residents of Buffalo, New York, who are Bills fans, we are going to take a sample of like, 100 residents, and then use this to estimate for the entire city.
In this problem, we have that:
A new process that is supposed to increase the recovered amount is being tested. In a simple random sample of 100 batches of ore, an average of 42 pounds per ton were recovered using the new process.
So the population of interest is the ore treated with new process. We use a sample of 100 to gather information about the entire population.
So the correct answer is:
d. Ore treated with the new process.
3x<18 I'm not sure what the rule for this problem is.
Answer:
x^7
Step-by-step explanation:
(f + g)(x) = x^2 + 1 + <span>5 – x = x^2 - x + 6
hope that helps</span>
Answer:
Step-by-step explanation:
The <u>total area</u> of the circle is given by:
where 
is a constant 
and 
is the radius: 
Thus the total area of this circle is:
We want only the area of the arc that measures 50°. For this we must remember that the arc of the total circle is 360°.
Thus, we want 50° out of the 360° degrees in the circle. For this, we divide the total area by 360 and then we multiply by 50:
the area of the sector to the nearest tenth is
