Diameter = 8 yards so the Radius = 4 yards:

Area of a sphere = 4π.R² and hemisphere = 2π.R²

Area of hemisphere = 2.π.(4)² = 32.π
But note we didn't calculate yet the are that closes this hemisphere:
Area of the cicle = π.R² = π.(4)² = 16.π, so the surface area of the hemisphere is 32π + 16π = 48.π (Or =150.8 yard²)

8 0

3 years ago

Read 2 more answers

Fuseina has Ghc 40,000.00 to invest. She decides to put part of the money in an account paying 4% interest and the remainder int

12345 [234]

Answer:

368es igual k todo las 4y6

6 0

2 years ago

The population of a small town in 1990 was 1,200 people, and the population in 2000 was 2,700 people. Let x represent the number

zheka24 [161]

Well... looking at how to question is defining things.....i think this is a multiple choice question.....

Given:
"y" represents the population
"x" represents the number of years
duration = 2000 - 1990 = 10 years
population increase = 2700 - 1200 = 1500
Now,
It says linear equation........, So, we have to assume that every ten years the population increases by a fixed amount that is 1500 people every 10 years.

Now,
Every 10 years, the population increases by 1500
Every 1 year , the population increases by 1500 / 10
= 150

Now,
The equation in determining the population is:

y = 150x + 1200

4 0

3 years ago