Area of deck= 2(20w)+4(w^2)+2(50w)d
456=2(20w)+4(w^2)+2(50w)
456=40w+4w^2+100w
456=4w^2+140w
114=w^2+35w
0=w^2+35w-114
find what 2 numbers multiply to get 114 and add to get 35 and factor
-3 and 38
0=(w-3)(w+38)
set each to zero
w-3=0
w=3
1200 milligrams because 400 times 3 would equal a full 24 hours
Answer:
all work is shown and pictured
Answer is <span>b. 121/27
</span><span>3+1+1/3+1/9+1/27
= </span><span>3+1+9/27+3/27+1/27
= 4 13/27
= 121/27</span>
the answer is 1.069 if the 2 is just being multiplied by 1/2
if 1/2 is being squared then the answer is .319
