Answer:A triangle has a perimeter of 165 cm. The first side is 65 cm less than twice the second side. The third side is 10 cm less than the second side. Write and solve an equation to find the length of each side of the triangle.
The sides can be found by taking the square root of the area. , where = side. . So the length of a side is 6.3 cm.
Step-by-step explanation:
 
        
             
        
        
        
There is only one solution in the given equation -y2 − [-5y − y(-7y − 9)] − [-y (15y + 4)] = 0. In solving this problem, apply first PEMDAS (parenthesis, exponents,multiplication, division, addition, subtraction). Then equation will transform into -y2+5y-7y2-9y+15y2+4y=0. Combine terms with same power and achieve 7y2=0. Divide both sides with 7 and perform square root of zero. Since the root is zero, we have one solution of the given equation which is y=0.
        
                    
             
        
        
        
Answer:

Step-by-step explanation:
The equation of a line:

We have

substitute:

The formula of a distance between a point and a line:
General form of a line:

Point:

Distance:

Convert the equation:
 |<em>subtract
     |<em>subtract  from both sides</em>
 from both sides</em>
 |<em>multiply both sides by 3</em>
    |<em>multiply both sides by 3</em>

Coordinates of the point:

substitute:


 |<em>multiply both sides by
    |<em>multiply both sides by  </em>
</em>
 |<em>divide both  sides by 3</em>
   |<em>divide both  sides by 3</em>

Finally:

 
        
             
        
        
        
Answer:
The answer is c
Step-by-step explanation:
cuzzzzzzz I toooooookkkkk aaaa test
 
        
             
        
        
        


solve for "w", to find the wind's speed rate,
so hmmm what's the plane's rate?  well 420 - w = r  :)