Answer:
1/8
Step-by-step explanation:
A dentist has 400 male and female patients that range in age is from 10 years old to 50 years old and up. What is the experimental probability that the next patient will be female and in the age range of 22 through 39?
10-21 22-39 40-50 50+
Male 44 66 32 53
Female 36 50 45 74
There are 400 male and female patient in total
there 400 possible outcome
Total number of possible outcome = 400
There are 50 females in 22-39 range and thus there are 50 favourable outcome
The probability is the number of favourable outcome divided by the number of possible outcome

= 0.125
=12.5%
Answer
The answer and procedures of the exercise are attached in the following archives.
Step-by-step explanation:
You will find the procedures, formulas or necessary explanations in the archive attached below. If you have any question ask and I will aclare your doubts kindly.
Answer:
Area of the figure = 109 cm. square
Step-by-step explanation:
The radius of the semi circle is 12 ÷ 2 = 6 cm.
Area of the semi circle = 
The radius of the quarter circle is 6 cm.
Area of the quarter circle = 
The area of the rectangle = 12 × 2 = 24
The area of the figure = 18π + 9π + 24 = 108.78 ≅ 109 cm. square