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3 years ago

Y=x-7 , where on the graph will the y-intercept be located?

Mathematics

2 answers:

geniusboy [140]3 years ago

7 0

Answer:

-7

Step-by-step explanation:

y=mx+b where b= y-intercept

Helen [10]3 years ago

3 0

Answer:

y-intercept=(0,-7)

Step-by-step explanation:

In slope-intercept form, $y=mx+b$ , m is the slope and b the y-intercept. Since -7 is in place of the b, -7 is the y-intercept. It is located where x equals 0, so (0,-7)

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Neko [114]

Answer:

Volume: $\frac{2}{3}\pi r^3$

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Step-by-step explanation:

First of all, we need to find the volume of the hemispherical tank.

The volume of a sphere is given by:

$V=\frac{4}{3}\pi r^3$

where

r is the radius of the sphere

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Here, we have a hemispherical tank: a hemisphere is exactly a sphere cut in a half, so its volume is half that of the sphere:

$V'=\frac{V}{2}=\frac{\frac{4}{3}\pi r^3}{2}=\frac{2}{3}\pi r^3$

Now we want to find the ratio between the volume of the hemisphere and its surface area.

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