The ratio of the area of the sector (S) to the area of the entire circle (C) is equal to the ratio of the angle subtended to form the sector (As) to the angle for the whole revolution (Ac)
S / C = As / Ac
Substituting the given,
S / 36 m² = 40 degrees / 360 degrees
Solving for S gives, S = 4. Thus, the area of the sector is 4 m².
Answer: 64 cm ²
Step-by-step explanation:
The perimeter of this rectangle will be:
= 2 * Length + 2 * Width
= 2 * 10 + 2 * 6
= 20 + 12
= 32 cm
The square has the same perimeter. Squares have 4 equal sides so each side of the square must be:
= 32 / 4
= 8 cm
Area = Length * Width
= 8 * 8
= 64 cm ²
Answer: 3.14 x 12^2 = 452.16
It will take approximately 17 1/2 years for the city to reach a population of 1,000,000.
Step by Step Explanation:
7% of 450,000 is 31,500
450,000 to 1,000,000 means you need another 550,000 people in your population.
So take 550,000 divided by 31,500, which equals 17.46, which then rounds up to 17.5 years.
17.5 x 31,500= 551,250
That is how long it will take to reach 1,000,000 population count when the population only increases 7% each year.
If the exper. prob. of rain is 50%, then the expected # of days on which rain will fall in Houston is 0.50(365), or 182 days. Lot of rain!
