She then measures the distance from the mirror to the base of the tree ... backwards until she sees the top of the tree reflected in the mirror.
<span> 3x+5y = 15
5y = -3x + 15
y = -3/5(x) + 3
hope it helps
</span>
Answer:
x^2+7x+12
Step-by-step explanation:
(x+3) (x+4)
FOIL
first: x*x = x^2
outer: 4x
inner: 3x
last: 3*4 =12
Add them together
x^2 +4x+3x+12
x^2+7x+12
