9514 1404 393
Answer:
63
Step-by-step explanation:
The number of seats in a row will give an arithmetic sequence:
6, 9, 12, 15, ...
The first term is 6; the common difference is 3. The general term is ...
an = a1 +d(n -1) . . . . . . n-th term of sequence with first term a1, difference d
The 20th term of the sequence is ...
a20 = 6 +3(20 -1) = 6 +57 = 63
There would be 63 seats on the 20th row.
Hi there!
The answer would be 120 so D.
Add all the measurements: 20 + 60 + 40 and you get 120.
Hope this helps ;)
Answer:
11
Step-by-step explanation:
4=1
14=2
24=3
34=4
40=5
41=6
42=7
43=8
44=9
45=10
46=11
You will encounter 11 4s.
Answer:
Q9 X=42.5
Step-by-step explanation:
let unknown angle be x
cos x=45/61
X=cos^-1 45/61
X=42.463...
X=42.5 (1 decimal place)
Answer:
A; Orthocenter
Step-by-step explanation: