Answer: x = 5/2 = 2.5
Step-by-step explanation:
<u>Given expression</u>
2x (x + 3) = 2x² + 15
<u>Expand parentheses and apply the distributive property</u>
2x · x + 2x · 3 = 2x² + 15
2x² + 6x = 2x² + 15
<u>Subtract 2x² on both sides</u>
2x² + 6x - 2x² = 2x² + 15 - 2x²
6x = 15
<u>Divide 6 on both sides</u>
6x / 6 = 15 / 6
x = 15/6

Hope this helps!! :)
Please let me know if you have any questions
 
        
                    
             
        
        
        
Step-by-step explanation:
right. 
and therefore c is in this case the name of the variable in the equation (or function).
add on. 
ah, do you mean (and does this strange problem description mean) that you want the reverse formula : to get C out of F ?
in that case
F = 1.8c + 32 = 9/5 × c + 32
F - 32 = 9/5 × c
5/9 × (F - 32) = c
or
c = 5/9 × (F - 32)
that's it.
 
        
             
        
        
        
Answer:
The x coordinate is 2
Step-by-step explanation:
Given


Required
Determine the x coordinate of B
Since B is the bisector of AC, then B is the midpoint and will be calculated using;

Considering the x coordinates alone;

Where
 and
    and     
Substitute values for x1 and x2



<em>Hence;</em>
<em>The x coordinate is 2</em>
 
        
             
        
        
        
Answer:
10/14  25/35
Step-by-step explanation:
For the first one multiply times 2
For the second one multiply times 5