Answer:
a^n=-9+(n-1).5
Step-by-step explanation:
Arithmetic sequence=a+(n-1)d
a=-9
n=?
d=+5
Arithmetic sequence=-9+(n-1)5
=-9+5n-5
Collect like terms
-9-5+5n
-14+5n
So the final answer is
an=-9+(n-1).5
1.) 2
2.) 110
3.) <span>0.0675
4.) 17.28</span>
The number of cans needed to paint an area covering 2,200 sq. units will be given by:
number of cans=[area required to be painted]/[area that 1 can of paint can cover]
=2200/400
=5.5
Therefore we conclude that we will need 5.5 cans of paint
Answer:
2w^2 - 6w
Step-by-step explanation:
Length is equivalent to 2w - 6
width is equivalent to w
area involves w x (2w - 6)
expanded form: w(2w - 6) --) 2w^2 - 6w
