9514 1404 393
Answer:
(b) a[1] = -7, a[n] = a[n-1] + 3
Step-by-step explanation:
Comparing the given formula to the general form for the n-th term of an arithmetic sequence ...
an = a1 +d(n -1)
we see that the first term (a1) is -7, and the common difference (d) is +3.
The recursive version of the sequence definition is ...
a[1] = a1
a[n] = a[n-1] +d
So, the appropriate choice is ...
a[1] = -7, a[n] = a[n-1] +3
Answer:
Criag have left with 4 tickets .
Step-by-step explanation:
Criag have total no. of ride tickets = 232
Each ride of the Feris Wheel cost no. of tickets = 6
6 tickets are required to cover each ride of Feris wheel
So, 232 tickets are required to cover no. of rides of Feris wheel = 
232 tickets are required to cover no. of rides of Feris wheel = 
1 ride of Ferris wheel cost no.of tickets = 6
38 rides of Ferris wheel cost no.of tickets =
So, Tickets left = 232-228=4
Hence Criag have left with 4 tickets .
Answer:
55
Step-by-step explanation:
along line s, r intersects it, and you can see a right angle
90+35+angle 2 =180
you end up with 55, which is the measure
Yes 8>-8 because 8 is negative