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vlada-n [284]
3 years ago
15

Question 4 of 10

Mathematics
1 answer:
jok3333 [9.3K]3 years ago
6 0

Answer:

B. 7y - 15

Step-by-step explanation:

10y - 3(y+5)

= 10y -3y - 15

= 7y -15

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3 years ago
A cylinder has radius 2.5 cm and lateral area 20 pi cm^2. What is the surface area of the cylinder in terms of pi?
Novosadov [1.4K]
This is the concept of areas of solid materials; the surface area of the cylinder whose radius is 2.5 cm and lateral area is 20 pi cm^2 will be: Surface area of cylinder is given by:
SA=(area of cyclic sides)+(lateral area)
SA=2πr^2+πrl
Area of the cyclic sides will be:
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=2*π*2.5^2
=12.5π cm^2
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SA=(12.5π+20π) cm^2
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The answer is 32.5π cm^2

4 0
3 years ago
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eduard

Answer:

Choice 3

Step-by-step explanation:

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8 0
3 years ago
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Ugo [173]

Answer:

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Step-by-step explanation:

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