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3 years ago

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Mathematics

1 answer:

ValentinkaMS [17]3 years ago

4 0

Answer:

B is the correct answer

Step-by-step explanation:

Subtract area of triangle from total area: 30 - 14 = 16
Since the figure is a square, all the sides are equal. Therefore, we need to find the square root of 16: √16 = 4
All the sides of the square are 4 cm long

To check, reverse application:
4 x 4 = 16
16 + 14 = 30

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<h3>Probability</h3>

Probabilities are used to determine the chances of events.

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<h3>Individual probabilities</h3>

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The probability that the ball does not land on a red slot is calculated as:

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<h3>Binomial probability</h3>

The value of P(R = 3) is then calculated using the following binomial probability formula

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So, we have:

$P(R = 3) = ^7C_3 \times (9/19)^3 \times (10/19)^{7-3}$

$P(R = 3) = 35 \times (9/19)^3 \times (10/19)^4$

$P(R = 3) = 0.2854$

Hence, the value of P(R = 3) is 0.2854