Answer:
(a) P(sum is 8) = 1/20
(b) P(sum is 6 or less) = 3/10
(c) P(first number is 2 or the sum is 5) = 3/10
Step-by-step explanation:
(a)
The probability (P) of having 8 as the sum of the numbers is;
P(3 and 5) = 1/5 × 1/4 = 1/20
(b) Probability that the sum of the numbers is 6 or less.
P(sum is 6) = P(2 and 4) or P(1 and 5) = 1/20 + 1/20 = 1/10
P(sum is less than 6) = P(1 and 4) or P(1 and 3) or P(1 and 2) or P(2 and 3) = 1/20 × 4 = 1/5
P(sum is 6 or less) = 1/10 + 1/5 = 3/10
(c) The first number is 2 or the sum is 5
P(first number is 2) = 1 - P(first number is 1) - P(first number is 3) - P(first number is 4) - P(first number is 5) = 1 - 4(1/5) = 1/5
P(sum is 5) = P(1 and 4) or P(2 and 3) = 1/20 + 1/20 = 1/10
P(first number is 2 or sum is 5) = 1/5 + 1/10 = 3/10
Answer:
The formula for this arithmetic sequence: 
Step-by-step explanation:
As
- weighing about a ton on their 14th birthday, weighing about a ton on their 14th birthday, the average T-Rex grew 4.6 pounds per day from the age 14 to 18 years.
Let the general term 
of the arithmetic sequence represent the weight in tons of the T-Rex where 
is the number of days.
Therefore, the formula for this arithmetic sequence:
Keywords: arithmetic sequence
Learn more about arithmetic sequence from brainly.com/question/11908808
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-3(x-1)+8 (x-3)=6x+7-5
-3x+3 + 8x-24= 6x+2
5x-21=6x+2
(subtract 5x from both sides)
-21=1x+2
(subtract 2 from both sides)
-24=x
I hope this helps love! :)
The last statement is true based on the information in the table
