Answer:
for the first picture:
1. 1
2. 0.8
3. 0.4
for the second picture:
2,256
srry if i needed to show the steps
 
        
                    
             
        
        
        
Answer:
Step-by-step explanation:
=-65*5
=-325
 
        
             
        
        
        
Check  the picture below.
make sure your calculator is in Degree mode.
 
        
                    
             
        
        
        
We can find the answer by solving the two equations simultaneously.
equation 1: y = -0.4x^2 +3xequation 2: x + y = 10
We need to write equation to with y as the subject:equation 2: y = 10 - x
equation 1 = equation 2:
10 - x = -0.4x^2 + 3x0.4x^2 - 4x + 10 = 02x^2 - 20 + 50 = 0(2x - 10)(x - 5) = 0x = -10/2 or x = 5
<span>But x >= 0 (the question says it's a height </span>above<span> the water), so x = 5</span>
Substituting x = 5 into one of the equations:
y = 10 - x
y = 10 - 5
y = 5
<span>So the answer is C</span>
        
                    
             
        
        
        
Answer:
Ok amigo, entonces es falso porque los miles son 5 ahora, la parte 25 está en la marca de diez mil más inteligente, por favorStep-by-step explanation: