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Molodets [167]
3 years ago
6

Please help me I don’t know the answer

Mathematics
1 answer:
lukranit [14]3 years ago
4 0

Answer:

D

Step-by-step explanation:

the highest real number stops at 4, which means all the sets of real number are less than 4.

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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
2 plus 2 is for times 20 is
Damm [24]
2+2=4 x 20=80 I hope this is what you were looking for
4 0
2 years ago
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FinnZ [79.3K]
The answer is C
-1 , 3
6 0
2 years ago
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PLEASE HELP! ASAP please help
Crank

Answer:

( 3 , -5 )

Step-by-step explanation:

7 0
3 years ago
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rosemary made 4 gallons of fruit punch for a meeting. each small cup is filled with 6 ounces of punch. what is the greatest numb
RUDIKE [14]

85! Because there are 128 oz. in a gallon and there are 4 gallons. 128x4=512 divide 512 by 6 and get 85.333 85 is the greatest amount.

3 0
2 years ago
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