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siniylev [52]
3 years ago
11

The sum of 8 and joses score is 35 use the variable j yo represent josés score​

Mathematics
1 answer:
OLEGan [10]3 years ago
8 0

Answer:

8 + j = 35

subtract 8 from both sides

j = 27

Step-by-step explanation:

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An 8-sided fair die is rolled twice and the product of the two numbers obtained when the die is rolled two times is calculated.
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<u>Question Completion</u>

(b) Use the possibility diagram to calculate the probability that the product of the two numbers is

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Step-by-step explanation:

The sample space for an 8-sided fair die rolled twice is:

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(a) The possibility diagram of the product of the two numbers appearing on the die in each throw

1, 2, 3, 4, 5, 6,7,8\\2, 4, 6, 8, 10, 12,14,16\\3,6,9,12,15,18,21,24\\4,8,12,16,20,24,28,32\\5,10,15,20,25,30,35,40\\6,12,18,24,30,36,42,48\\7,14,21,28,35,42,49,56\\8,16,24,32,40,48,56,64

(b)

I) A prime number

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P$(Product is a prime number)=\dfrac{8}{64}= \dfrac{1}{8}\\=0.125

ii) Not a perfect square  

Number of products which are perfect squares =11

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Number of Products that are multiples of 5=15

P$(A multiple of 5)=\dfrac{15}{64}\\=0.234375

iv) Less than or equal to 21

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P$(Less than or equal to 21)=\dfrac{40}{64}=\dfrac{5}{8}\\=0.625

v) Divisible by 4 or 6

Products Divisible by 4 or 6= 42

P$(Divisible by 4 or 6)=\dfrac{42}{64}=\dfrac{21}{32}\\=0.65625

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