Answer:
1.
Step-by-step explanation:
We are being told that:
A scientist is hoping to compare the mean levels of DDT toxin found in three species of fish in a local river.
He randomly samples 50 of each species to use in the analysis.
i.e sample size n = 50
For each fish, he measures the amount of DDT toxin present. The amount of DDT toxin present will be use to rank the species based on the mean level of toxin.
From the information above, we will realize that the factors that are present in this study is just only one and which is the amount of DDT in a Fish because, it is the major focus in this question.
Answer:
The difference between the two are the signs. -4^2 = 16 because it means -4 x -4 = 16 while (-4)^2= 16 they get the same answer but the signs and the form of operations is different
Answer:
prove to be right should be the correct answer?
Step-by-step explanation:
In cases like that, switch the word out for it's definitions and choose the one that fits best too, like "He was not sure how he would prove his actions to be right to his family"
-8 and 2 is one pair
another could be -4 and -2.
