Answer:
-3
Step-by-step explanation:
y=mx+b where m=slope and b=y-intercept.
To find the age of tom we will use the expression 20*3 because tom is three times as old as Sam.
so the answer is 60
Answer:
214.2 units²
Step-by-step explanation:
To find the surface area, we add the area of all the 6 sides.
2(Length x Width) + 2(Length + Width) x height
Surface area
= 2(6.5 x 8) + 2(6.5 + 8) (3.8)
= 104 + 110.2
= 214.2 units²
Answer:
Sample relative risk is 4.
Step-by-step explanation:
We are given the following in the question:
Group 1 of smokers: 10 out of 100 get lung cancer.

Group 2 of non-smokers: 5 out of 200 get lung cancer

Sample relative risk:
- It is the ratio of probability of an outcome in an exposed group to the probability of an outcome in an unexposed group.
Sample relative risk =

Thus, sample relative risk is 4.