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3 years ago

Which equation can be used to find the surface area of the cylinder?

Mathematics

2 answers:

vodka [1.7K]3 years ago

6 0

Answer:

S = 2 pi (3) squared + 2 pi (3) (14)

Step-by-step explanation:

The formula for the area of a circle is ...

A = πr²

The cylinder has two circular bases with radius 3 cm, so their combined area in square centimeters is ...

A = 2π(3²) . . . . . . matches a term in the last choice

The lateral area of the cylinder is the product of the height and the circumference of the base. That is ...

A = 2πrh

For the given radius and height, the lateral area in square centimeters is ...

A = 2π(3)(14) . . . . . . matches a term in the last choice

The total surface area is the sum of the areas of the bases and the lateral area, so is ...

S = 2π(3²) +2π(3)(14) . . . . . matches the last choice

_____

<em>Comment on answer choices</em>

We could choose the correct answer based solely on the area of the bases of the cylinder.

ira [324]3 years ago

6 0

Answer:

S = 2 pi (3) squared + 2 pi (3) (14)

Step-by-step explanation:

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3 years ago

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Monica [59]

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3 years ago

Total number of faculty is 136. There are 6 professors to every 11 lecturers. How many professors are there

laila [671]

Answer:

The Total number of Professors = 48

Step-by-step explanation:

Given as,

The total number of Faculty = 136

And the Ratio of Professors to Lecturers = 6 Ratio 11

Now According to question

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So, Let the Number of Professors = 6x

And The Number of Lecturers = 11x

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3 years ago

Solve the exponential equation for x. 625 = 5 (7x-3)

posledela

Answer:

Step-by-step explanation:

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