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andre [41]
4 years ago
13

Audrey meausers all 7 penciles in her pecile case and wirtes down the first 6 lengths.

Mathematics
1 answer:
Orlov [11]4 years ago
7 0

Answer:

14.4cm

Step-by-step explanation:

Let the 7th length be y

Mean of the length = sum of all the length/number of let

Mean of the length = 13cm

13 = (11.8 + 12.4 + 12.5 + 13.2 + 13.6 + 13.1 + y) /7

13 = (76.6 + y) /7

Cross multiply to express in linear form

13 x 7 = 76.6 + y

91 = 76.6 + y

Collect like terms

91 — 76.6 = y

y = 14.4cm

Therefore, the 7th length is 14.4cm

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A circular garden with a radius of 8 feet is surrounded by a circular path with a width of 3 feet.
Nadusha1986 [10]

Answer: area of the path alone is 178.98 ft²

Step-by-step explanation:

Since the circular garden is surrounded by a circular path, two circles are formed.

The formula for determining the area of a circle is expressed as

Area = πr²

Where

r represents the radius of the circle.

π is a constant whose value is 3.14

Considering the circular garden,

Radius = 8 ft

Area = 3.14 × 8² = 200.96 ft²

Considering the circular garden and the circular path together,

Radius = 8 + 3 = 11 ft

Area = 3.14 × 11² = 379.94 ft²

Area of the path alone is the circular garden and the circular path together - area of circular path

It becomes

379.94 - 200.96 = 178.98 ft²

5 0
3 years ago
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Step-by-step explanation:

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3 0
3 years ago
What type of transformation does Shape A undergo to form Shape B a
Elis [28]

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6 0
3 years ago
What is the answer for this too?
Vikki [24]
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8 0
4 years ago
Solution of 2/3 x =12 ?
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