The required probability of that the person is of over 40 years of age. Option D is correct.
Given that,
If one of the 255 subjects is randomly selected, find the probability that the person is over 40 years of age is to be determined.
Probability can be defined as the ratio of favorable outcomes to the totalnumber of events.
Here,
Let the total number of people that has age of more than 40 years,
= 20 + 30 + 35
= 85
Now,
According to the question,
Probability is given as,
= 85 / 255
= 1/3
Thus, the required probability of that the person is of over 40 years of age. Option D is correct.
Learn more about probability here:
#SPJ2
Answer:
1/3
Step-by-step explanation:
The number of people over 40 is 20 + 30 + 35 = 85.
So the probability is 85/255, which reduces to 1/3.
1___ Square centimeters
2 Calculate the area of the rectangle.
3. Calculate the area of the shaded region. Use 3.14 for π. Round to the nearest hundredth.
Answer:
1. The area of the circle is 132.67 square centimeters
2. The area of the rectangle is 60 square centimeters
3. The area of the shaded region is 72.67 square centimeters
Step-by-step explanation:
* Lets explain how to solve the problem
- A rectangle is inscribed in a circle, that means the vertices of the
rectangle lie on the circumference of the circle
∴ The diagonal of the rectangle = the diameter of the circle
- From the attached figure
∵ The diameter of the circle = 13 cm
∵ The radius of the circle is half the diameter
∴ The radius of the circle = 1/2 (13) = 6.5 cm
- The area of the circle = πr²
∵ π = 3.14
∴ The area of the circle = 3.14 × (6.5)² = 132.67 cm²
1. The area of the circle is 132.67 square centimeters
- The area of any rectangle = length × width
∵ The length of the rectangle is 12 cm
∵ The width of the rectangle is 5 cm
∴ The area of the rectangle = 12 × 5 = 60 cm²
2. The area of the rectangle is 60 square centimeters
- The area of the shaded region is the difference between the
area of the circle and the area of the rectangle
∵ The area of the circle = 132.67 cm²
∵ The area of the rectangle = 60 cm²
∵ The area of the shaded region = area of circle - area of rectangle
∴ The area of the shaded region = 132.67 - 60 = 72.67 cm²
3. The area of the shaded region is 72.67 square centimeters
to the nearest tenth.
Answer:
16.
Step-by-step explanation:
since given the radius and the formula of the circumference of a circle is 2pie*r
B) 124.96 ounces
C) 125.56 ounces
D) 125.96 ounces
9514 1404 393
Answer:
B) 124.96 ounces
Step-by-step explanation:
To find ounces, multiply the number of grams by the number of ounces in each gram.
3550 × 0.0352 = 124.96 . . . ounces
answer.
Answer:
7/9
Step-by-step explanation:
7 divided by 9 is .7777777777....