Problem: Article: You can find information about tampons online from sites like Kids Health and the Planned Parenthood website, as well as online tutorials from sites like YouTube. You can also see if your school nurse or doctor's office provides any pamphlets or information regarding tampons or period protection in general. Reading up on the basics of tampons and how they work can help you decide if they're right for you, and every box of tampons contains information about them and how to insert one. You can also check out sites from popular tampon brands, like Kotex or Tampax. It may also help to look at diagrams of the female reproductive system. This can help you figure out where to insert a tampon if you choose to use one. If you're unsure if you'll be comfortable with tampons in the long run, try them out for a few days. Buy a small package of tampons or even ask a friend or family member to give you a few. If you find you dislike the way they feel, or if your uncomfortable using tampons, you can always go back to pads or a menstrual cup. Some companies, like Thinx, make "menstrual panties" that you can wear during your period with or without using a tampon or pad. Many women and girls prefer tampons because you can engage in more activities while wearing a tampon. If you're a swimmer, for example, you can wear a tampon in a pool, but you can't wear a pad. Activities that require a lot of movement, like dancing or playing sports, are also easier to do with a tampon.
Summary: Get more information about tampons. Try using a tampon when you get your period to see if you like it. Use tampons if you participate in high-intensity activities.

INPUT ARTICLE: Article: This question is not your hypothesis. Rather, it will give you a topic and let you start making tests and observations so that you can arrive at an educated hypothesis. The question should be about something that can be studied and observed; think about it as if you were preparing a project for a science fair. For example, a question could be something like, "Which brand of stain remover will remove stains from fabrics most effectively?" The most common way to test a hypothesis is to create an experiment. A good experiment uses test subjects or creates conditions where you can see if your hypothesis seems to be true by evaluating a broad range of data (test results). For the stain-remover experiment, you could dirty 4 types of fabric (e.g. cotton, linen, wool, polyester) each with 4 different types of stains (e.g. red wine, grass, mud and dirt, grease), and then test the top four or five brands of stain remover (e.g. Mr. Clean, Tide, Shout, Clorox) to see which removes the largest number of stains. At this point, you should start actually running your experiment. In any scientific test or hypothesis evaluation, a larger data pool will result in more accurate results. In the case of the stain-remover experiment, you'd need to purchase a bottle of each of the major stain-remover brands and dirty a variety of fabrics with a variety of stains. Then, test out each type of detergent on each of the stained fabrics. (If you live at your parents' house, you'll need to get permission to use the laundry room for most of a day.)

SUMMARY: Start with a question. Develop an experiment to answer your question. Start gathering data to answer your question.

In one sentence, describe what the following article is about: Suppose, as a different problem, that you know two sides and need to solve an unknown angle. You are given that side A is 10 inches long, side B is 7 inches long, and angle {\displaystyle lpha } is 50 degrees. You can use this information to find the measurement of angle {\displaystyle eta }. Set up the problem as follows: Asin=Bsin{\displaystyle {
rac {A}{\sin lpha }}={
rac {B}{\sin eta }}} 10sin50=7sin{\displaystyle {
rac {10}{\sin 50}}={
rac {7}{\sin eta }}} sin=7sin5010{\displaystyle \sin eta ={
rac {7\sin 50}{10}}} sin=70.76610{\displaystyle \sin eta ={
rac {7*0.766}{10}}} sin=0.536{\displaystyle \sin eta =0.536} In the above example, the law of sines provides the sine of the selected angle as its solution. To find the measure of the angle itself, you must use the inverse sine function. This is also called the arcsine. On a calculator, this is generally marked as sin1{\displaystyle \sin ^{-1}}. Use this to find the measure of the angle. For the example above, the final step is as follows: sin=0.536{\displaystyle \sin eta =0.536} =arcsin0.536{\displaystyle eta =rcsin 0.536} =32.4{\displaystyle eta =32.4}. Suppose you are told that angle =30degrees{\displaystyle lpha =30{ ext{ degrees}}}, angle =50degrees{\displaystyle eta =50{ ext{ degrees}}}, and side C, which connects them, is 10 inches long. Find the measurement of all sides and angles for the triangle. First, you should recognize that you do not yet have enough information for the sine rule to apply. The sine rule requires that you have at least one pair with an angle that opposes a known side. However, you can calculate the third angle of this triangle using simple subtraction. All three angles add up to 180 degrees, so you can find angle {\displaystyle \gamma } by subtracting: =180=1803050=100{\displaystyle \gamma =180-lpha -eta =180-30-50=100} Now that you know all three angles, you can use the sine rule to find the two remaining sides. Solve them one at a time: Csin=Bsin{\displaystyle {
rac {C}{\sin \gamma }}={
rac {B}{\sin eta }}} 10sin100=Bsin50{\displaystyle {
rac {10}{\sin 100}}={
rac {B}{\sin 50}}} 10sin50sin100=B{\displaystyle {
rac {10\sin 50}{\sin 100}}=B} 100.7660.985=B{\displaystyle {
rac {10*0.766}{0.985}}=B} 7.78=B{\displaystyle 7.78=B} Thus, side B is 7.78 inches long. Now solve for the final remaining side. Csin=Asin{\displaystyle {
rac {C}{\sin \gamma }}={
rac {A}{\sin lpha }}} 10sin100=Asin30{\displaystyle {
rac {10}{\sin 100}}={
rac {A}{\sin 30}}} 10sin30sin100=A{\displaystyle {
rac {10\sin 30}{\sin 100}}=A} 100.50.985=A{\displaystyle {
rac {10*0.5}{0.985}}=A} 5.08=A{\displaystyle 5.08=A} Side A, therefore, is 5.08 inches long. You now have all three angles, 30, 50 and 100 degrees, and all three sides, 5.08, 7.78, and 10 inches.
Summary:
Solve for an unknown angle. Use the inverse function if needed to find the angle. Solve a problem with incomplete information.