Surface area of the cylinder is 251.2 cm² and volume is 141.3 cm³.
More volume is that of the cylinder when height is tripled to 15 inches and radius is 3 cm.
Step-by-step explanation:
- Step 1: Given radius = 3 cm and height = 5 cm, find surface area and volume of the cylinder.
Surface area = 2πrh + 2πr² = 2πr(h + r)
= 2π × 5 (3 + 5) = 2 × 3.14 × 40 = 251.2 cm²
Volume = πr²h = 3.14 × 3² × 5 = 141.3 cm³
- Step 2: Find new volume when radius = 6 cm and height = 5 cm
Volume = 3.14 × 6² × 5 = 565.2 cm³
- Step 3: Find new volume when height = 15 in and radius = 3 cm
15 inches = 15 × 2.54 cm = 38.1 cm (∵ 1 in = 2.54 cm)
⇒ Volume = 3.14 × 3² × 38.1 = 1076.7 cm³
∴ More volume can be attained if the height is tripled to 15 inches while radius is still at 3 cm.
Answer:
4.7976
Step-by-step explanation:
pachocko
Answer:
b. Function A has a greater rate of change than Function B has
Given:
Initial cost of living = $44,000
Rate of increase = 5% = 0.05
To find:
The cost of living in 20 years.
Solution:
The exponential growth model is:
Where, a is the initial value, r is the growth rate and t is the number of years.
Putting 
in the above model, we get
Therefore, the cost of living in 20 years is about $116745.10.
