The point would be on the -2.
1) This is not an arithmetic sequence because it has n².
2) To find 5 first terms of this sequence, you can simply substitute n with 1,2,3,4, and 5, and calculate values of a(1),a(2), a(3), a(4) and a(5).
a(n) = 3n²- 1
n=1 a=3*1² - 1 = 3-1=2
n=2 a=3*2² - 1 = 11
n=3 a=3*3² - 1 =26
n=4 a=3*4² - 1 = 47
n=5 a=3*5² -1 = 74
2,11,26,47,74
Answer C. 2,11,26,47,74.
Answer:
$16
Step-by-step explanation:
90m+80m=1360
170m=1360
m=8
8 x 2= 16
Answer:140 meters
Step-by-step explanation:1km=100m, 1.4km times 100=140
Answer:
13
Step-by-step explanation:
To obtain a term in a Fibonacci sequence, add the previous 2 terms, thus
7 th term = 8 + 5 = 13
