Answer:
1. x=2       2.
y=1
Step-by-step explanation:
Im sorry I TRIED :(
 
        
             
        
        
        
Answer:z=10yd
y=38 degrees
x=90 degrees
w=180-128= 52 degrees
u=6.2yd
v=7.9yd
Step-by-step explanation:
 
        
             
        
        
        
Answer:
the answer is 5
Step-by-step explanation:
2x/5 - 9 = -7
2x/5      = -7 + 9
2x/5      = 2
2x         = 2 * 5
2x         = 10
x            = 10/2
x            = 5
 
        
                    
             
        
        
        
Answer:
y = -3/8(x + 2)^2 + 8
Step-by-step explanation:
vertex form is 
y = a(x - b)^2 + c     where a is a constant and (b,c) is the vertex.
The maximum is at (-2, 8)  because x 8 = height and x =-2 is equn. of symmetry
So here we have
y = a(x - (-2))^2 + 8
y = a(x + 2)^2 + 8 
Now at the point (-6, 2):
2 = a(-6+2)^2 + 8
2 = 16a + 8
16a = -6
1 = -3/8.
So our equation is y = 3/8(x + 2)^2 + 8
 
        
             
        
        
        
Step-by-step explanation:
The key to solving word problems is in translation: turning word into  math
Below is a general approach to most/any word problem
1. Read through the whole question once, without lingering over details, to get some sense of the overall problem
2. identify and label the variables or unknowns in a way that makes it easy to remember what they stand for.
3. translate the problem into one or more equations, sentence by sentence, and be careful of the order in which you translate the terms
4. solve the equation(s)
5. check your work