This is a scientific question because you could conduct an experiment to test the theory.
Answer:
Longest interval during which no tree-cutting sample occurred: 9 years (1203 AD - 1212 AD)
First year in that interval: 1203 AD
Explanation:
Lets complete the question first.
Q) A study uses tree rings to determine the year in which a tree was cut. The data is shown in the leaf and stem diagram in the ATTACHMENT.
The three digits number in the left column represents centuries and decades AD. The numbers on the right represents the years.
For example, consider the first input in the diagram
119 | 5 6
which means it represents 2 samples.
1195 AD, 1196 AD.
The longest interval with no tree-cutting samples is found from 1203 AD to 1212 AD.
The best approach for Tyler is a controlled experiment if he wants to directly observe the outcome.
A controlled experiment is designed to minimize the effects of the variables other than the independent variable. A controlled experiment allows reliable results because he can do the experiment specific to the problem and variables involved.
Answer:
many breast cancers have no obvious symptoms at all. When there are no symptoms, breast cancer can be found through a screening mammogram. The most important thing is to bring any unusual signs to your doctor's attention, and to talk to your doctor about a breast screening plan that is appropriate for you
Explanation:
Answer:
D. All of the above.
Explanation:
Recommended Dietary Allowance (RDA) is a term that refers to the amount of vitamins, minerals and protein that should be consumed daily to meet the nutritional needs of most individuals and groups of people in a healthy population. The RDA should be recommended by a nutritionist, in addition it is noteworthy that the RDA can be used as a guideline to provide nutritional adequacy for micronutrients and often the RDA values are different for men and women.