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mina [271]
3 years ago
7

A cylinder has a radius of 7 cm and a height of 12 cm what is the surface area

Mathematics
1 answer:
xxTIMURxx [149]3 years ago
3 0
Surface Area of Cylinder = 2πrh.

Radius, r = 7 cm, height = 12 cm.

Surface Area = 2*π*7* 12 = 168π  cm²

π ≈ 3.14159

168π = 168*3.14159

Surface Area ≈ 527.79 cm²
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miskamm [114]

Answer:

1. Number 1 and 2 and 4 is a function, 2. number 1 is a function

Step-by-step explanation:

1)To know if it's a function or not run vertical lines through multiple places of the graph. If it is a function every single time you do the vertical line test it should only go over the line once. If you do the vertical line test on 3 you will see that it went over the line on the graph, so we know not a function. Graphs 1, 2, and 4m however, are different, when you do the vertical line test on those graphs it only goes over them once.

2) Choice (1) is a function because when drawing vertical lines through the graph it only goes over one.

Choice (2) is not a function because when drawing vertical lines through the graph it covers two points on the graph.

Choice (3) is not a function because when drawing vertical lines through the graph it goes over multiple points.

Choice (4) is not a function because when a vertical line is drawn, it goes over more than one point on the graph.

The vertical test is a way to determine if it is a function.

When looking at a table functions are one-to-one and many-to-one

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Hoped this helped you : )

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3 years ago
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lianna [129]

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78/5

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