So for the left side put
0,30,60,150,240,330,1470
sorry but I only no the left side I hope that helps(:(:(:(:
<span>P(n,2)=42, find n.
------------
n!/(n-2)! = 42
n(n-1) = 42
n^2 -n - 42 = 0
(n-7)(n+6) = 0
Positive answer:
n = 7
============
Cheers,
</span>
Answer:
D
Step-by-step explanation:
hope this helps
<h3>
Answer: 35.2 cm</h3>
===============================================
Work Shown:
x = sum of all 6 lengths
x/6 = mean of the 6 lengths
x/6 = 44.2
x = 6*44.2
x = 265.2
All 6 lengths add up to 265.2 cm.
---------
y = sum of the first 5 lengths
y/5 = mean of those first 5 lengths
y/5 = 46
y = 5*46
y = 230
The first five lengths add up to 230 cm.
---------
z = length of the 6th rod, length is in cm
y+z = (length of first 5 rods)+(length of 6th rod)
y+z = x
230+z = 265.2
z = 265.2-230
z = 35.2
The sixth rod is 35.2 cm
I don’t understand the first part but 1+-5= -4
