A.50*9.8
B.50*1.6
C.45.359237
D.45.3*1.6
9514 1404 393
Answer:
a[1] = -10
a[n] = 12 + a[n-1]
Step-by-step explanation:
First differences are ...
- 2 -(-10) = 12
- 14 -2 = 12
- 26 -14 = 12
A constant first difference of 12 means this is an arithmetic sequence. Each term is 12 more than the previous, so the recursive rule is ...
a[1] = -10
a[n] = 12 + a[n-1]
I’m pretty sure it’s the one with the r and s
so the second option!
Answer:
4.7 to nearest tenth.
Step-by-step explanation:
By Pythagoras:
8^2 = x^2 + 6.5^2
x^2 = 8^2 - 6.5^2
x^2 = 64 - 42.25 = 21.75
x = √21.75
= 4.6637
The surface area would be 9