All categories

3 years ago

Please help with number 1

Mathematics

1 answer:

ra1l [238]3 years ago

3 0

Answer:

C=G=80°

Step-by-step explanation:

C=180°-(A+B)

G=180°-(E+F)

Because the sum of three angles of any triangle adds up to 180°

You might be interested in

Does someone know the answer

BlackZzzverrR [31]

The answer to your question is c

6 0

3 years ago

A storage tank will have a circular base of radius r and a height of r. The tank can be either cylindrical or hemispherical (ha

Neko [114]

Answer:

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

Ratio: $\frac{2}{9}r$

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

V is the volume

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.

The surface area of a sphere is

$A=4 \pi r^2$

For a hemisphere, the area of the curved part of the surface is therefore half of this value, so $2\pi r^2$ . Moreover, we have to add the surface of the base, which is $\pi r^2$ . So the total surface area of the hemispherical tank is

$A'=2\pi r^2 + \pi r^2 = 3 \pi r^2$

Therefore, the ratio betwen the volume and the surface area of the hemisphere is

$\frac{V'}{A'}=\frac{\frac{2}{3}\pi r^3}{3\pi r^2}=\frac{2}{9}r$

6 0

2 years ago

I NEED HELP WITH A PROBLEM

Lapatulllka [165]

Answer:

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

Calculate the distance between the points H=(4,-8) and C=(9,-4) in the coordinate plane.

cricket20 [7]

Answer:

$find the functions whose derivative is 0$

5 0

2 years ago

Help me with this pls

Rufina [12.5K]

Answer:

b^-6

Step-by-step explanation:

(b^-2) / (b^4) = b^(-2 - 4)

3 0

3 years ago

Read 2 more answers