Answer: the decimal should still be there but you don’t want to have a zero so 3.42 would be correcr
Step-by-step explanation:
 
        
             
        
        
        
The answer is B) x>3
13x - 4 < 12x - 1
13x > 12x + 3
x > 3
        
             
        
        
        
A: From the graph, car B was traveling faster.
Because the line of car B is more steep than the line of car A.
B:
The lines cross at (2,80), this means that the two cars were traveling at the same distance (80 miles) at the same time (2 hours).
C:
Since the line passes through the points (0,0) and (2,80)
So the unit rate or slope is 40 mph.
The distance which car A traveled in the first four hours = 4x40= 160 mph
        
             
        
        
        
Answer:
Step-by-step explanation:
Perimeter is
P = 2L + 2W.  We are given the perimeter as 180 feet, so
180 = 2L + 2W.  Solve this for either L or W.  I chose W, no reason...
180 - 2L = 2W so
90 - L = W  Hold that thought.  We'll come back to it in a minute.
Area is
A = LW.  We are given the area as 1800 square feet, so
1800 = LW.  Sub in 90 - L for W:
1800 = L(90 - L).  Distribute to get a quadratic:

Get everything on one side and solve for the length by factoring:

Factor this however you like to factor quadratics, to get the length of 
L = 30 and L = 60.  First off, the length is longer than the width in general, so if we want to solve for the width, plug in 60 as L in the equation in bold print:
90 - 60 = W and
30 = W
So L = 60 and W = 30
 
        
             
        
        
        
Answer:
1. Simplify the expression.
x2 + 3
2. Simplify the expression.
x2 − 5