Answer:
Step-by-step explanation:
The average age of 18 girls is 12.
<u>Total age of girls:</u>
The average age of 15 boys is 17
<u>Total age of boys:</u>
<u>Total age of children:</u>
<u>Total number of children:</u>
<u>Average age of children:</u>
- 471 / 33 = 14.3 (rounded)
Answer:
roots are 1, 1/3, 7, 7/3
Step-by-step explanation:
Squares have equal side lengths, so that is why the question is only asking for one side length.
The area of a square is calculated using the formula s^2, where s stands for a side of the square.
To find the length of one side of the park, you can take the given area (3,600 m^2) and square root it. This would give you the length of one side of the square park.
√3,600 = 60
The length of one side of the park is 60 meters.
The formula for sector area is simple - multiply the central angle by the radius squared, and divide by 2: Sector Area = r² * α / 2.
Answer:
circumference = 12.56 cm
Step-by-step explanation:
circumference=2 x radius x Pi
circumference = 2 x 2 x 3.14
circumference = 12.56