Deck=456
area of pool=legnth times width=20 times 50=1000
the area of the deck is made up of 4 rectangles and 4 squares, the rectangles' areas come in pairs
areas are
area of deck= 2(20w)+4(w^2)+2(50w)d
456=2(20w)+4(w^2)+2(50w)
distribute
456=40w+4w^2+100w
add like terms
456=4w^2+140w
divide everybody by 4
114=w^2+35w
subtract 114 from both sides
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
w+38=0
w=-38
false since measures in real life cannot be negative
therfor width of walkway=3ft
Answer:
16
Step-by-step explanation:
Rearrange this data set in increasing order: -6 -5 -3 -1 6 10
The range is the difference between the highest value and the smallest:
10 - (-6) = 16
Answer:
C
Step-by-step explanation:
7/9 x 6 = 4u 6/9
simpify it and you get 4u2/3
hope thus helps :)
Answer:
Slope of 3
Step-by-step explanation:
-6x + 2y = 8
Add 6x
2y = 6x + 8
divide by 2
y = 3x + 4
Slope = 3
Parallel lines have the same slope