Answer:
Use reverse operations to find the original number.
15/2
7.5
The number that was originally thought of was 7.5.
:)
 
        
             
        
        
        
Answer:

Step-by-step explanation:
If the ellipse has its x-intercepts at points (2, 0) and (-2, 0) and y-intercepts at points (0, 4) and (0, -4), then its symmetric across the y-axis and across the x-axis.
Moreover,

The equation of such ellipse is 

Hence, the equation of the ellipse is 

 
        
             
        
        
        
Answer:
the answer is (-4, 5)
Step-by-step explanation:
Let's use elimination by addition / subtraction:
-6x - 2y =  14
6x + 7y = 11
-------------------
         5y   = 25, so y = 5.
Substituting 5 for y in the 2nd equation, we get:
6x + 7(5) = 11, or:
6x + 35 = 11, or
6x = -24, or x = -4.
Thus, the answer is (-4, 5).  Please double check to ensure you have copied down both system of equations and answer correctly.
Check:  Is (-4, 5) a solution to this system?
Subst. -4 for x and 5 for y in the first equation:
             -3(-4) - (5) = 7
                12 - 5 = 7  YES
 
        
             
        
        
        
Answer:
y=mx+b
Step-by-step explanation:
the equation would be y= 3/4 + 3 
the rise is 3 
the run is 4 
the line runs through 3 on the y intercept. 
 
        
             
        
        
        
Answer: 5 1/4 x 1 1/5 = 7 1/2 + 3/8 -> 7 7/8
The answer is 7 and 7/8