Answer:
90/1.5=60 mph
Step-by-step explanation:
I assume that the train is traveling at constant speed.
Between 12:45 pm and 2:15 pm the train has traveled 180-90=90 miles. So 90 miles in 1.5 hours which means that its speed is 90/1.5=60 mph
  
        
                    
             
        
        
        
The answer is <span>252.5 ft
</span><span>y = –0.004x</span>²<span> + x + 2.5
Let's take y = 0 and we'll get the quadratic equation:
</span>–0.004x² + x + 2.5 = 0
The general formula for quadratic equation is:
ax² + bx + c = 0
a = -0.004
b = 1
c = 2.5


Since distance cannot be negative (x1), the correct answer is x2 = 252.5 ft
 
        
        
        
Make sure you substitute x for 3
The equation would be: 
5-3<8
Subtract 3
2<8
The statement is true
        
             
        
        
        
Answer:  
Step-by-step explanation:
 For this exercise it is important to remember the following:
 1. By definition, the "Product" is the result of a multiplication.
 2. The "Difference" is defined as the result of a subtraction.
 3. The Distributive property states that:
 
 Keeping the above on mind, you know that:
 "The difference of  and
 and  " can be represented with the following expression:
" can be represented with the following expression:
 
 Therefore, "The product of -13 and the difference of  and
 and  " can be represented with this expression:
" can be represented with this expression:
 
 Finally, you must apply the Distributive property in order to simplify the expression. You get:
 
 
        
             
        
        
        
Answer:
-270
Step-by-step explanation:
The value closest to zero on the number line is greatest because all of the values are negative which is less than zero. -270 is closer to 0 than the other values.