A. -14x+21
because -7 times 2x is -14x and -7 times -3 is 21
??? I don’t understand the question I don’t speak Spanish
Answer:
Some texts are missing from the question, I found a possible match, and here it is:
A particular country has total of 45 states. If the areas of 35 states are added and the sum is divided by 35, the result is 135,600 square kilometres. Determine whether this result is a statistic or a parameter.
Answer:
The result is a statistic because the data involved are samples.
Step-by-step explanation:
A Parameter is a numerical representation of an entire population. That is they are numbers summarizing data for an entire population. In this case, if all the 45 states were measured, the result would have been a parameter.
On the other hand, statistics are numbers that are subsets (representative portions) of an entire population. Since 35 states were chosen out of 45 states, the average area of the 35 states is a statistic and not a parameter.
Answer:
c=sqrt(b^2+9), -sqrt(b^2+9)
Step-by-step explanation:
c^2-9=b^2
c^2=b^2+9
c=sqrt(b^2+9), -sqrt(b^2+9)
