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2 years ago

I give brainlyiest or however you spell it lol. And PLZ HELP ME

Mathematics

2 answers:

Soloha48 [4]2 years ago

6 0

Answer:

Put 2 dots in the spot above 9 by clicking on the space above the numbers. Put 3 above 10. Put 2 above 11. Put 2 above 12.

Gre4nikov [31]2 years ago

4 0

Answer:

brainliest also gimmie a sec to figure it out

Step-by-step explanation:

You might be interested in

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

2 years ago

If 3x - 2y = 9 , 27x³- 8y³= 1377 , prove that xy = 4 plzz answer this question...

solniwko [45]

Step-by-step explanation:

Here we are given that , the Value of

$3x - 2y = 9$
$27x^3 - 8y^3 = 1377$

And we need to find the prove that ,

$xy = 4$

We know a identity as ,

$(a-b)^3 = a^3-b^3-3ab(a-b)$

On cubing both sides of the given equation,

$(3x-2y)^3 = 9^3$

Simplify and then substitute ,

$27x^3-8y^3 -3(3x)(2y)(3x-2y ) = 729$

$1377 - 18xy (9) = 729$

$162xy = 1377-729$

$xy =\dfrac{648}{162}$

$xy = 4$

Hence Proved !

8 0

2 years ago

Can anyone please help with either of these problems?? i need it done asap! thank you in advance!

storchak [24]

Answer: No problem

Step-by-step explanation:

7 0

2 years ago

PLEASE HELP

VashaNatasha [74]

Answer:

Step-by-step explanation:

To one decimal place:

$2 \sqrt{10} = 6.3$

$10 \sqrt{2} = 14.1$

So there are eight integers between 2√10 and 10√2: 7, 8, 9, 10, 11, 12, 13, and 14.

3 0

1 year ago

Read 2 more answers

Answer this problem 3/14 divided 2/7 a. 2/7 b. 1/2 c. 1/7 d. 3/4

Ierofanga [76]

Answer:

Step-by-step explanation:

3/14 divided by 2/7 is 0.75

a.) 0.28571428571

b.) 0.5

c.) 0.14285714285

d.) 0.75

So d is the correct answer.

6 0

3 years ago

Read 2 more answers