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Vilka [71]
3 years ago
13

There are four accent walls that need to be painted: cafeteria, gym, auditorium, and entrance. The art class is going to paint e

ither a forest or an ocean nature scene on one of them. What is the probability that the ocean scene is painted in the gym?
Mathematics
2 answers:
V125BC [204]3 years ago
6 0
The probability of an ocean scene going on the gym wall is 16%
erma4kov [3.2K]3 years ago
3 0

Answer:

12.5%

Step-by-step explanation:

There are 4 walls to choose from, and 2 scenes to choose from. So the number of combinations is 2×4=8. One of those is the ocean scene on the gym wall. So the probability is:

P = 1/8

P = 12.5%

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NISA [10]
For the perimeter you have to consider the EXTERNAL SHAPE ONLY:

a) the perimeter of half a circle WITHOUT ITS DIAMETER  is:
π.R - 2R → 3.14x1.5 - 2x1.5 → 1.71 cm

b) the perimeter of the rectangle WITHOUT THE UPPER SIDE is:
2.5+3+2.5 = 8 cm

Hence the perimeter of the figure is 1.71 + 8 = 9.71 cm

2) Area of the figure:
Area of half circle is π.R²/2 →3.14 x (1.5)²/2 → Area half circle = 3.5325 cm²
Area of rectangle = 2.5 x 3 = 7.5 cm²
Total area = 3.5325 + 7.5 = 11.0325 ≈ 11 cm²


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MakcuM [25]

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Step-by-step explanation:

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