3 years ago

What is the surface area of a rectangular prism that measures 12 meters by 11 meters by 9 meters

Mathematics

1 answer:

stich3 [128]3 years ago

7 0

1188 meters cubed is the answer

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Marianna [84]

Answer:

they are both corresponding angles (equal)

48=4x

48/4=x

12=x

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3 years ago

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The opposite of 1.5 is ? So the opposite 1.5 ? Which is equal to the opposite of ? Which is ? The second statement is ?

rewona [7]

I think the opposite of 1.5 is -1.5

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3 years ago

A rug is to be centered in a room so that the border around it is of a consistent width on all four sides. If the room is 10 ft

aleksley [76]

Answer:

The width of the border can be 9 feet or 3.5 feet.

Step-by-step explanation:

Let the width be x

Length of room = 10 feet

Breadth of room = 15 feet

Length of rug = 10-2x

Breadth of rug = 15-2x

Area of rug = $(10-2x)(15-2x)$

We are given that the area of the rug is 24 square feet.

So, $(10-2x)(15-2x)=24$ ---A

$150-20x-30x+4x^2=24$

$150-24-50x+4x^2=0$

$126-50x+4x^2=0$

$2(x-9)(2x-7)=0$

$x=9,\frac{7}{2}$

$x=9,3.5$

Substitute x =9 in A

$(10-2(9))(15-2(9))=24$

$24=24$

LHS = RHS

Substitute x = 3.5

$(10-2(3.5))(15-2(3.5))=24$

$24=24$

LHS = RHS

So, The width of the border can be 9 feet or 3.5 feet.

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4 years ago

Which ratio is the same as 2/3?

kompoz [17]

Answer:

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3 years ago

How many tenths are in a whole?

Olegator [25]

10 tenths in a whole.....

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3 years ago

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