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svetlana [45]
3 years ago
13

Factorise this please​

Mathematics
1 answer:
ahrayia [7]3 years ago
5 0

Answer:

x^4 - 3y^4 -2

your welcome

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Find the length of one side of a square if the perimeter of the square is 20 inches.
damaskus [11]

Answer:

5 inches

Step-by-step explanation:

A square is all equal sides, so 20 inches divided by 4 is 5 inches.

Hope this helps :)

7 0
3 years ago
What is 30 percent of 25
sweet [91]
7.5 is 30 percent of 25 because

25 divided by 10 is 2.5 times 3 is 7.5
6 0
3 years ago
An open-top rectangular box with square base is to be made from 100 square feet of material, as shown.
-Dominant- [34]

The largest possible volume of the given box is; 96.28 ft³

<h3>How to maximize volume of a box?</h3>

Let b be the length and the width of the base (length and width are the same since the base is square).

Let h be the height of the box.

The surface area of the box is;

S = b² + 4bh

We are given S = 100 ft². Thus;

b² + 4bh = 100

h = (100 - b²)/4b

Volume of the box in terms of b will be;

V(b) = b²h = b² * (100 - b²)/4b

V(b) = 25b - b³/4

The volume is maximum when dV/db = 0. Thus;

dV/db = 25 - 3b²/4

25 - 3b²/4 = 0

√(100/3) = b

b = 5.77 ft

Thus;

h = (100 - (√(100/3)²)/4(5.77)

h = 2.8885 ft

Thus;

Largest volume = [√(100/3)]² * 2.8885

Largest Volume = 96.28 ft³

Read more about Maximizing Volume at; brainly.com/question/1869299

#SPJ1

4 0
1 year ago
$14.75 + ? = $15.70 what does it equal?
IgorLugansk [536]

Answer:

Step-by-step explanation:

0.95

5 0
3 years ago
Read 2 more answers
The Great Pyramid in Giza, Egypt, is a square pyramid. The dimensions of the pyramid at the time of its completion are shown in
Ann [662]
Hey there look like you need some help.
If I give you the correct answer mark me brainleist

First you would find the area of the square:        230*230= 52,900Next you would find the area of one on the triangles:        230*187=43,010 * 1/2=  21,505Then you would multiply the area of the one triangle by four:       21,505*4= 86,020Finally, you would add the area of the square to the combined area of the triangles:        86,020+ 52,900=138,920

7 0
3 years ago
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