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Marat540 [252]
2 years ago
11

The length and width of a rectangular room are measured to be 3.95±0.05m and 3.05±0.05m, respectively. The area & premeter o

f the floor is
Mathematics
1 answer:
Flauer [41]2 years ago
8 0

Perimeter is the sum of length of the sides used to made the given figure. The perimeter of the rectangle is 14±0.2 meters.

<h3>What is perimeter?</h3>

Perimeter is the sum of length of the sides used to made the given figure.

The absolute area of the floor can be written as,

Area, A = 3.95m × 3.05m = 12.0475 m²

The Error in the area of the floor is,

(ΔA/A) = (Δl/l) + (ΔW/W)

(ΔA/12.0475) = (0.05/3.95) + (0.05/3.05)

ΔA = 0.35 m²

Hence, the area of the rectangular room is 12.0475±0.35 m².

The perimeter can be,

Maximum Perimeter = 2[(3.95+0.05)+(3.05+0.05)] = 14.2

Minimum Perimeter = 2[(3.95-0.05)+(3.05-0.05)] = 13.8

The Perimeter = [(14.2+13.8)/2 ± (14.2-13.8)/2 ] = 14±0.2 meters

Hence, the perimeter of the rectangle is 14±0.2 meters.

Learn more about Perimeter:

brainly.com/question/10466285

#SPJ1

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Answer:

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Step-by-step explanation:

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I hope this helps! (;

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OverLord2011 [107]

This is not my answer I found it from another brainly

From the beginning we know we are dealing with two different rates. Distance is equal to (Speed X Time). We have two different speeds though. We will call the min speed = x and the max speed = y. With those two ideas in place we can make two equations for both Tony and Rae.

Tony:

2x+3.5y=355

Rae:

2x+3y=320

Now you can solve the equations by subtracting Rae's equation from Tony's

.5y=35 solve for y and you get 70

Now plug that y value back into either equation and you can solve for x. I'll use Rae's distance:

2x+3(70)=320

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6. Solve P = C + rC for r.
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Answer:

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Step-by-step explanation:

that the answer

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