There are many factors that affect the rate of chemical reactions and temperature is one of them.
Typically, the higher the temperature of a chemical reaction the faster the reaction occur, that is, the temperature and the rate of chemical reaction are directly related. This is due to the fact that increasing the temperature of the reaction increases the kinetic energy of the reacting particles and thus they are able to move faster and the reaction also occur faster. Thus, from the options given, the correct answer will be D [40 degree], this is because, it is the highest temperature out of all the options given.
The complete question is :
As an epidemiologist you are going to investigate the effect of a drug suspected of causing malformations in newborn infants when the drug in question is taken by pregnant women during the course of their pregnancies. As your sample you will use the next 200 single births occurring in a given hospital. For each birth a medication history will be taken from the new mother and from her doctor; in addition, you will review medical records to verify use of the drug. [N.B.: These mothers are considered to have been followed prospectively during the entire course of their pregnancies, because a complete and accurate record of drug use was maintained during pregnancy.] The resultant data are: Forty mothers have taken the suspected drug during their pregnancies. Of these mothers, 35 have delivered malformed infants. In addition, 10 other infants are born with malfunctions. What is the relative risk between exposure to the drug and malformations?
Answer:
14
Explanation:
- The relative risk is a measure that is used to calculate or compare the likelihood or the chance that an event would occur while comparing the two groups.
- To calculate the relative risk, the probability of an event occurring in one group is compared with the probability of the event occurring in another group and this is done by dividing the probability of one group by another.
- The value of relative risk is always either zero or greater than zero but it cannot be negative.
- The value 1 indicates neutrality.
- The probability of an event = no. of favorable outcomes/ total no. of outcomes
- For the given question, 35 mothers out of 40 delivered infants that were malformed, so the probability of delivering malformed infants is 35/40.
- Out of the 200 births, 40 have occurred so total births left is 200 - 40 = 160
- Therefore, the probability of the second event is 10/160.
- Therefore relative risk is = (35/40)/(10/160) = (0.875/0.062) = 14
According to the given statement The volume in cubic feet rounded to 3 significant digit is 4022.34 cu ft.
<h3>What is volume and example?</h3>
The capacity of an object is measured by its volume. For instance, a cup's capacity is stated to be 100 ml if it can hold 100 ml of water in its brim. The quantity of space occupied by a three-dimensional object can also be used to describe volume.
<h3>Briefing:</h3>
Slant height = 15.25 feet=2196 inch
Smaller base diameter is = 12.00 inches r = D/2 = 6 inch
Larger base diameter is = 24.00 inches r = D/2 = 12 inch
h = √s² - (r
- r
)²
h = √(2196)² - (12 - 6)²
h = 2195.99
V = 1/3π h(R² + r² + Rr)
V = 1/3 * 3.14 * 2195.99 (144 + 36 + 72)
V = 579216.96 inch
V = 579216/144 = 4022.34 cu ft.
To know more about Velocity visit:
brainly.com/question/18084516
#SPJ9
Answer:
Q9 is Elliptical and Q10 is sideways i think. Im not sure. Sorry if its not correct.
Explanation:
A decrease in strawberry productivity