Find the domain by finding where the expression is defined.
Interval Notation:
Interval Notation: ( − ∞ , 2 3 ] (-∞,23]
Set-Builder Notation: { x ∣ ∣ ∣ x ≤ 2 3 }
F(x) has two real roots, -2 and +1. Those are the only x-intercepts.
f(x) has 2 x-intercepts. hope this helps
X is cookies were sold and y is brownies were sold
{x+1.5y=32
-
{x+y=25
0.5y=7
y=14
x=25-14=11
Tiffany and Adele sold 11 cookies and 14 brownies
19/20
19/20 = 0.95
0.9 < 0.95