First 5 terms are: -1,0,3,8,15
Step-by-step explanation:
we will put n=1,2,3,4,5 to find first 5 terms of the sequence
Explicit formula for sequence is:
Putting n=1
Putting n=2
Putting n=3
Putting n=4
Putting n=5
Hence,
First 5 terms are: -1,0,3,8,15
Keywords: Arithmetic sequence, Common difference
Learn more about arithmetic sequence at:
#LearnwithBrainly
Answer:
3 (at least, 3 is the closest integer)
Step-by-step explanation:
9514 1404 393
Answer:
B. a = plus-or-minus 4
Step-by-step explanation:
3a² -21 = 27 . . . . . . . given
3a² = 48 . . . . . . . . . . add 21 to both sides (desired form)
a² = 16 . . . . . . . . . . . divide both sides by 3
a = ±4 . . . . . . . take the square root