The answer is C (-1,-4)
I got the answer by graphing the equation and plotting each the points down to see which one lies on the graph
A = length x width
15,000 = (w + 30) x w
15,000 =
+ 30w
0 =
+ 30w - 15,000
Use quadratic formula to find that w= -15 + or - 5
. Because distance cannot be negative, the width is -15 + 5
meters or approximately 108.39 meters. This means that the length is approximately 138.39 meters.
Note that when rounding, if the number is:
5 or greater, round up
4 or less, round down
43.68532 rounded to the nearest dollar is 44, as 6 rounds up
$44 is your answer
hope this helps
-2(x+9)-6=-24
-2x-18-6=-24
2x=0
x=0
2(x+9)-6=-24
2x+18-6=-24
2x=-36
x=-18
Its -1.5 or in other fraction form its -1 1/2.......hope that helps
