This works when it is not close to noon
put the yardstick next to the pole
measure the shadow of the pole, call it x
measure the letngh of the shadow of the yardstick
measure the height of the yardstick
the ratio of the height of the yardstick to the shadow of the yardstick should be close to the ratio of the height of the pole to the legnth of the shadow of the pole
a study designed to determine if there is an association between an adverse effect in a large population and exposure to a particular agent is an Epidemiological study.
Epidemiology is the observation of the distribution of diseases and other fitness-related situations in populations, and the utility of this study is to manipulate fitness issues. The time period epidemiology is now broadly carried out to cover the description and causation of not the most effective epidemic, infectious ailment, but of sickness in preferred, along with associated situations. some examples of topics examined via epidemiology consist of excessive blood stress, mental illness, and weight problems. Saving Lives. shielding human beings. Saving cash via Prevention. Epidemiology is the examination of the starting place and reasons for diseases in a network.
Cohort studies are fine for analyzing the herbal progression of ailment or chance elements for sickness; case-manipulate studies are lots quicker and less pricey. Qualitative research methods are a key component of discipline epidemiologic investigations due to the fact they are able to offer insight into the perceptions, values, critiques, and community norms in which investigations are being carried out (1,2).
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Answer:
Step-by-step explanation:
The given Equation is
.................(i)
Adding ( 
) on both sides of (i)
solving and cancelling out the terms will give
⇒ 
⇒ 
...................(ii)
Now we Know that
Applying this on equation (ii)
This will lead us to
Either 2x-3 =0 .......(iii) or 2x+3=0 ..........(iv)
Solving equation (iii) for value of x
2x - 3 =0
adding 3 on both sides
2x -3 +3 = 0+ 3
2x = 3
Cross multiplying gives
Solving equation (iv) for value of x
2x + 3 =0
adding -3 on both sides
2x -3 +3 = 0- 3
2x = -3
Cross multiplying gives
so and
14=2x +6
14-6=2x+<u>6-6</u>
8=2x
x=<u>2</u>
<u> </u><u> </u><u> </u><u> </u>8
x=4
Answer:
Step-by-step explanation:
1. Write an expression to show how to calculate the number of buses needed. Make sure to include parenthesis to show what should be done first since order of operations is important.
(9*25)+4+(2*4)=237 (total number of people going to the museum
Each bus,excluding the driver,holds 44 people
237/44 = 5.3863636363.......
2. How many buses will be needed?
6 buses are needed
3. Why must the answer to the problem be a whole number?
Buses cannot be divided in fractions It should be or 5 buse or 6
But 5 buses are not enough
4. Why shouldn't you round the answer the usual way?
Even when rounded it is still a decimal and buses need to be counted by whole number
5. Can your answer be classified as a rational number? Explain why or why not.
6 is a rational number (whole number)
5.38636363.......is rational ( repeating decimal
