4x (2x - 6)
8x - 24x
= -16x
b is an <span> irrational number between 9 and 10</span>
In my opinion i think you are right but i’m not sure but it could be one of those
Answer:
f
(
10
x
−
6
)
=
1000
x^
3
−
1800
x
^2+
1170
x
−
306
Step-by-step explanation:
Step-by-step explanation:
Let's call L the length and W the width. The length is 10 feet longer than the width, so:
L = W + 10
The area is the length times width, so:
119 = LW
Substituting:
119 = (W + 10) W
119 = W² + 10W
0 = W² + 10W − 119
0 = (W + 17) (W − 7)
W = -17 or 7
Since W must be positive, W = 7.
L = W + 10
L = 17
The length and width are 17 feet and 7 feet, respectively.
