Answer:
a₁ = -21 (Given)
a₂ = -28
a₃ = -35
a₄ = -42
Step-by-step explanation:
First term a₁ = -21 (Given)
…………………………………
Second term a₂ :
a₂ = ![a_{2-1} - 7\\a_{1} - 7\\a_{1} = -21\\-21 - 7 = -28](https://tex.z-dn.net/?f=a_%7B2-1%7D%20-%207%5C%5Ca_%7B1%7D%20-%207%5C%5Ca_%7B1%7D%20%3D%20-21%5C%5C-21%20-%207%20%3D%20-28)
…………………………………
Third term a₃ :
a₃ = ![a_{3-1} - 7\\a_{2} - 7\\a_{2} = -28\\-28 - 7 = -35](https://tex.z-dn.net/?f=a_%7B3-1%7D%20-%207%5C%5Ca_%7B2%7D%20-%207%5C%5Ca_%7B2%7D%20%3D%20-28%5C%5C-28%20-%207%20%3D%20-35)
…………………………………
Fourth term a₄ :
a₄ = ![a_{4-1} - 7\\a_{3} - 7\\a_{3} = -35\\-35 - 7 = -42](https://tex.z-dn.net/?f=a_%7B4-1%7D%20-%207%5C%5Ca_%7B3%7D%20-%207%5C%5Ca_%7B3%7D%20%3D%20-35%5C%5C-35%20-%207%20%3D%20-42)
Answer:
76233
Step-by-step explanation:
Add the numbers together:
75444 + 789 = 76233
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It is B) -1/2 you btw you don't have to put please help :)
Answer:
5/12
Step-by-step explanation:
15 students went to hear the doctor speak and 21 students went to other sessions
How many students are there? 15 + 21 = 36 students
Therefore, the probability to randomly select a student that went to hear the doctor is
, then simplifying it by 3 is
.
If we want to express it in percentage it would be 41.6%