Which of the following expressions is equivalent to −8x ?
1 answer:
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The capacitance of the other cylinders are 2174. 94cm³ and 1208. 30cm³.
<h3>How to find the capacitance</h3>Capacity of a cylinder is seen as its volume
Volume of a cylinder = πr²h
The heights of the cylinders are
a. 3cm
b. 9cm
c. 5cm
Let's find the radius
Capacity = 3. 142 × r² × 3
725 = 3. 142 × r² × 3
r² =
r² =
r² = 76. 91
r = √76. 91
r = 8. 77cm
Radius of the cylinders = 8. 77cm
For cylinder with height of 9cm
Capacitance = πr²h
Capacitance = 3. 142 × 8. 77 × 8. 77 × 9
Capacitance = 2174. 94 cm³
For cylinder with height of 5cm
Capacitance = 3. 142 × 8. 77 × 8. 77 × 5
Capacitance = 1208. 30 cm³
Thus, the capacitance of the other cylinders are 2174. 94cm³ and 1208. 30cm³.
Learn more about volume of a cylinder here:
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Answer:
16π
Step-by-step explanation:
Given that:
The sphere of the radius =
The partial derivatives of
Similarly;
∴
Now; the region R = x² + y² = 12
Let;
x = rcosθ = x; x varies from 0 to 2π
y = rsinθ = y; y varies from 0 to
dA = rdrdθ
∴
The surface area
= 8π ( -2 + 4)
= 8π(2)
= 16π