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3 years ago

BONUS QUESTION: Is it true or false that each system of linear equations

Mathematics

2 answers:

Anastaziya [24]3 years ago

5 0

Answer:

true because I know hdhdnndnd

Step-by-step explanation:

ehbendndbdbdbbch

Usimov [2.4K]3 years ago

4 0

Answer:

true

Step-by-step explanation:

please follow me and mark me brainlist

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Are these(4,1) 1,-3) (2,0) solutions to this graph?

kogti [31]

(4,1) : no because the line is solid.
(1,-3) : yes because the line is not solid.
(2,0) : no because the line is solid.

Solid lines represent < or >, and if a point is on the line directly, it’s not included in the solution set.

7 0

4 years ago

A percentage is a fractional value expressed as the number of

enyata [817]

In mathematics, a percentage (from Latin per centum "by a hundred") is a number or ratio expressed as a fraction of 100.

3 0

3 years ago

A box has a volume of 192 cubic inches, a length that is twice as long as its width, and a height that is 2 inches greater than

ruslelena [56]

Answer:

Therefore the dimension of the cuboid is 8 inches×4 inches ×6 inches.

Step-by-step explanation:

Cuboid : A cuboid is a three dimension shape. The length ,breadth and height of a cuboid are not same.

A cuboid has 6 faces.
A cuboid contains 8 vertices.
A cuboid contains 12 edges .
The total surface area of a cuboid is

= 2(length×breadth+breadth×height+length×height) square units

The dimension of a cuboid is written as length×breadth×height.

The volume is( length×breadth×height) cubic units

Given that the volume of the box is 192 cubic inches.

Let x inches be the width of the cuboid.

Since the length is twice as long as its width.

Then length = 2x inches

Again height is 2 inches longer than width.

Then height = (x+2) inches.

Therefore the volume of the cuboid is

$=[x\times 2x\times (x+2)]$ cubic inches

$=[2x^2(x+2)]$ cubic inches

$=(2x^3+4x^2)$ cubic inches

According to the problem,

$2x^3+4x^2=192$

$\Rightarrow 2x^3+4x^2-192=0$

$\Rightarrow 2(x^3+2x^2-96)=0$

$\Rightarrow (x^3+2x^2-96)=0$

$\Rightarrow x^3-4x^2+6x^2-24x+24x-96=0$

$\Rightarrow x^2(x-4) +6x(x-4)+24(x-4)=0$

$\Rightarrow (x-4)(x^2+6x+24)=0$

Therefore x=4

Since the all zeros of x²+6x+24 =0 is negative.

Therefore breadth = 4 inches

length=(2×4) inches=8 inches

and height = (4+2)inches = 6 inches.

Therefore the dimension of the cuboid is 8 inches×4 inches ×6 inches.

8 0

3 years ago

Alang has a loyalty card good for a discount at his local pharmacy. The item he wants to buy is priced at $13, before discount a

kap26 [50]

The percentage discount will be 9%.

<h3>How to calculate the value?</h3>

From the information given, the item he wants to buy is priced at $13, before discount and tax and after the discount, and before tax, the price is $11.83.

The percentage discount will be:

= (13 - 11.83)/13 × 100

= 1.17/13 × 100

= 9%

Therefore, the percentage discount will be 9%.

Learn more about percentages on:

brainly.com/question/24304697

#SPJ1

5 0

2 years ago

Write 3.554 as a percent

tatiyna

Step-by-step explanation:

0.03554%.............

6 0

3 years ago