Answer:
yessss lol
Step-by-step explanation:
The light, water, mirrors...they show reflection
Water= have you ever tried looking down at a cup of water ... you can see your self like a mirror.mirrors,we all use mirrors to see our ourselves
Light= well, in my opinion,when light hits you, there is totally a shadow that always follows you...isnt it a reflection of you? I say it is.
Answer:
528 is the Area
148 is the Perimeter
Step-by-step explanation:
We know that there is a 4 foot ring around the building so we add 8 feet to 18 x 40 which is 26 x 48.
To find the perimeter we take the Length and Height times 2 and then add that together.
26•2=52
48•2=96
52+96=148
148 is the Perimeter.
To find the area of the sidewalk.
We have to multiply the area together.
4•48=192•2=384
18•4=72•2=144
528
Add that together you have the area of the sidewalk
Let w=width and l=length.
<span>so, we know that 4xwidth(w) - 17 = length(l) </span>
<span>so, 4w-17=l </span>
<span>we also know that area (l x w) = 42 </span>
<span>As l=4w-17.....w x (4w-17) = 42 </span>
<span>Hence, 4w^2 -17w-42=0 </span>
<span>Be factorising this, we get (4w+7)x(w-6) = 0 </span>
<span>So, by using null factor law, w=6 or w=-7/4 </span>
<span>But, as width must be positive, w = 6 </span>
<span>Now, sub w=6 into the formula we found earlier, l=4w-17 </span>
<span>l=4(6)-17 = 7 </span>
<span>Hence, Length = 7 and Width = 6</span>
