Answer: Surface area = 68π inches²
Step-by-step explanation:
The formula for determining the total surface area of the circular cylindrical metallic rod is expressed as
Total surface area = 2πr² + 2πrh
Where
r represents the radius of the cylindrical rod.
h represents the height of the cylindrical rod.
π is a constant whose value is 3.14
From the information given,
Radius = 2 inches
Height = 15 inches
Therefore,
Surface area = (2 × π × 2²) + 2 × π × 2 × 15) = 8π + 60π
Surface area = 68π inches²
Let's say X is the first brother's age
x+2 is second brother, and x+4 is the third brother
Since the product of the first and third boy x(x+4) is 20 more than twice (20+x(x+2), our equation is x(x+4)=20+2(x+2)
Simplify from there and see what you get.
Linear equation of plant height is h = (1/2)w + 3
Given:
Height of experimental plant = 3cm
Average growth = 0.5 cm per week
Find:
Linear equation of plant height
Computation:
Given;
h = Plant height
w = number of weeks
So,
Plant height = Height of experimental plant + (Average growth)(number of weeks)
h = 3 + (0.5)(w)
h = (1/2)w + 3
Option "J" is the correct answer to the following question.
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183/3: 61mph
The answer would be 61mph.
<span>A. Calculate the value of x.</span>
