Width=19
Length=17
72-4=68/2=34/2= 17 length
72-4=68+4=38/2=19 width
1 Move all terms to one side.
{x}^{2}+15x+45=0
x
2
+15x+45=0
2 Use the Quadratic Formula.
x=\frac{-15+3\sqrt{5}}{2},\frac{-15-3\sqrt{5}}{2}
x=
2
−15+3
5
,
2
−15−3
5
3 Simplify solutions.
x=-\frac{3(5-\sqrt{5})}{2},-\frac{3(5+\sqrt{5})}{2}
x=−
2
3(5−
5
)
,−
2
3(5+
5
)
Answer:
yes
Step-by-step explanation:
12 + 3t = 72
Let t = 20
12 + 3*20 = 72
12 + 60 = 72
72 = 72
This is a true statement so t =20 is a solution
The answer is 215,000 I think
