Answer:
This means sonya moves 3 units backward 4 times
Step-by-step explanation:
4(-3) ;
4 represents the number of times a (-3) movement is executed.
-3 means a backward movement due to the presence of negative sign.
Hence, we can conclude that Sonya moves 3 units backward 4 times or can infer a direct multiplication of 4(-3) = - 12 ;
A backward movement of - 12 units.
Answer:
<h2>4 ft x 7 ft = 28 sq ft
</h2>
Step-by-step explanation:
Assuming that each section is rectangular, each area can be found with
Where is width and is length.
Notice that the area of each section is found with the product of width and length, that means the right answer must be a product.
Therefore, the right answer is the second choice.
This is an observational study and the conclusion of the researcher is not justified.
<h3>Controlled experiment</h3>
A controlled experiment is such that all the other factors in the experiment are kept the same except the variable that is being studied. This study is not a controlled experiment is not a controlled experiment because other factors that could affect the study were not carefully controlled.
This is an observational study. The conclusion of the researcher is not justified because other factors such as diet which could affect the blood pressure were not taken into account.
Learn more about controlled experiment: brainly.com/question/4444046