Subtracting a negative is the same as adding it.
4-(-3)=4+3=7
Answer:
Step-by-step explanation:
Let 
, a reflection over the x-axis consists in the following operation:
If we know that 
and 
, then the points translated over the x-axis are 
and 
, respectively. The most precise description of the shape is a rectangle for the following facts:
1) 
and 
.
2) 
and 
have the same x-component.
3) 
and 
have the same x-component.
4) and have the same y-component.
5) and have the same y-component.
A representation of the shape is included below as attachment.
Answer: 30 miles
Step-by-step explanation:
3 hours is 180 minutes.
y=1/6(180)
y=30 mi
Exchange rate L 1 = $ 1.5542
Mary has $ 135
Pounds that Mary exchanged 135/1.5542
= L 86.8614 = L 87
