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kozerog [31]
3 years ago
9

Giving 5 stars to right one

Mathematics
1 answer:
Sholpan [36]3 years ago
7 0
1/2(20)(15)+3.14(20)(20)+28(40)
=150+1256+68
=1474 sqft
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Mia's cat weighs 13 lbs and 7 ounces about what is the weight in kilograms
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4 years ago
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In high school, some students have been confused to believe that 22/7 is already the actual value of π or an acceptable approxim
jarptica [38.1K]

Answer:

Since it has smaller absolute and relative errors, 355/113 is a better aproximation for \pi than 22/7

Step-by-step explanation:

The formula for the absolute error is:

Absolute error = |Actual Value - Measured Value|

The formula for the relative error is:

Relative error = |Absolute error/Actual value|

I am going to consider the actual value of \pi as 3.14159265359.

In the case of 22/7:

22/7 = 3.14285714286.

Absolute error = |3.14159265359 - 3.14285714286| = 0.00126448927

Relative error = 0.00126448927/3.14159265359 = 0.00040249943 = 0.04%

In the case of 355/113

355/113 = 3.14159292035

Absolute error = |3.14159265359 - 3.14159292035| = 0.00000026676

Relative error = 0.00000026676/3.14159265359 = 0.000000085 = 0.0000085%

Since it has smaller absolute and relative errors, 355/113 is a better aproximation for \pi than 22/7

5 0
4 years ago
A jacket at the store is being offered at a 25% discount. If the original price of the jacket is x, which answer choice shows an
Fofino [41]

Answer:

0.75x

Step-by-step explanation:

Given that :

Discount rate= 25%

Original price = x

Discounted price of jacket :

(100 - discount rate)% * original price

(100 - 25)% * x

75% * x

0.75x

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3 years ago
The scale of a map is 2 in = 7 feet. If the map distance is 11 inches what is the actual distance in feet? Only type in the numb
Llana [10]

Answer:

38.5

Step-by-step explanation:

8 0
3 years ago
HELP PLEASE VERY HARD
kykrilka [37]

Answer:

-4, 2, 3

Step-by-step explanation:

Centre: (-4,2)

Radius: 3

(x - h)² + (y - k)² = r²

(x - -4)² + (y - 2)² = 3²

(x + 4)² + (y - 2)² = 9

3 0
3 years ago
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