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nekit [7.7K]
3 years ago
7

Christina rolls a number cube twice.What is the probability she rolls a prime number and then an odd number?

Mathematics
2 answers:
Arisa [49]3 years ago
5 0
The probability is 3/6 (1/2) as there are 3 prime numbers on a dice (2,3,5) and also 3 odd numbers on a dice (1,3,5)
ella [17]3 years ago
3 0

Christina rolls a number cube twice.

Number of outcomes in a cube = 1,2,3,4,5,6 = 6 outcomes

Prime numbers = 2,3,5 = 3 outcomes

Odd numbers = 1,3,5 = 3 outcomes

probability that she rolls a prime number = \frac{outcome of a prime number }{total number of outcomes} =\frac{3}{6} = \frac{1}{2}

probability that she rolls a odd number = \frac{outcome of a odd number }{total number of outcomes} =\frac{3}{6} = \frac{1}{2}

probability (a prime number and then an odd number) =

\frac{1}{2} * \frac{1}{2} = \frac{1}{4}

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Step-by-step explanation:

Alright, lets get started.

using Sine Law,

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Another angle will be

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considering angle B, angle C = 180 - (48.6+30)=101.4

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Similarly, finding c'

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