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arsen [322]
3 years ago
10

I need help with this

Mathematics
1 answer:
kow [346]3 years ago
7 0

Answer:

Regular hexagon =720

Regular octagon=1080

Step-by-step explanation:

The formula is (n-2) x 180, «n» is the side number of the polygon

The first one

So (n-2) x 180

(6-2) x 180

4 x 180

720

And the second polygon

(n-2)x 180

(8-2) x 180

6 x 180

1080

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A cylinder and a cone have the same volume. The cylinder has radius x and height y. The cone has radius 1/3x. Find the height of
Temka [501]

Great question! I had this question in Geometry on Edmentum.

Answer: Height of cone = 3y

Step-by-step explanation:

We know that the cylinder and the cone have the same volume. The cylinder has radius x and height y. We will make use of the formulas:

Volume of cylinder = πr²h

Volume of cone = 1/3πr²h

Since the cone has radius 1/3x, we will have to make its height 3 times of y (the height of the cylinder) to make both the cylinder and the cone have the same volume.

So, the height of the cone is equal to 3y.

Hope this helps, and have a wonderful day! :D

Please mark me brainliest! I don't have trouble getting points, but I do when it comes to brainliest.

7 0
3 years ago
The price of a computer was decreased by 10% to £504. What was the price before the decrease
katovenus [111]

Answer:

Step-by-step explanation:

100-10  :  100

90    : 100

504  : x

x=540x100/90

x=50400/90

x=560

7 0
3 years ago
9341/2 scientific notation
Darya [45]
Answer: 9.34 x 10^3
Hope this helps
5 0
4 years ago
I need help with these two questions please:) I need the answers fast ! Please and Thank You
Valentin [98]

Answer:

#1 is 9 times 10^15

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Step-by-step explanation:

4 0
3 years ago
Compute 4.659×104−2.14×104. Round the answer appropriately.
iogann1982 [59]

Answer:

261.98 is the value of the given expression.

Step-by-step explanation:

We have to find the value of the following expression:

4.659\times 104 - 2.14\times 104

Using the associative property, we can write and solve the given expression as:

(4.659 - 2.14)\times 104\\=2.519\times 104\\=261.976

Rounding off the answer, we get,

261.976\approx 261.98

Thus, 261.98 is the value of the given expression.

3 0
3 years ago
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