Answer:
The answer to your question is 24.7 ft
Step-by-step explanation:
Data
length of the ladder = 25 ft
distance from the ladder to the ladder = 4 ft
distance from the floor to the ladder = ?
Process
1.- Use the Pythagorean theorem to solve this problem
            c² = a² + b²
- solve for b
             b² = c² - a²
-Substitution
             b² = (25)² - (4)²
-Simplification
             b² = 625 - 16
             b² = 609
-Result
             b = 24.67 ft ≈ 24.7 ft
-Conclusion 
The ladder is 24.7 ft from the floor.
 
        
                    
             
        
        
        
Answer:

Step-by-step explanation:
To find out the m(slope) of the equation use the formula:
 .
.
Substitute the values:

Combine the values:

Find the value of the fraction:

M is -3.
The equation so far is 
To find the y intercept, substitute one pair of coordinates into the equation and solve for b:
 .
.
We see that b =-17 so the full equation would be:
 .
.
 
        
             
        
        
        
simplify : the exact value of sin 240
Explanation: sin(240)=sin(60+180)=-sin60

Final answer: the required vaalue of the sin 240 is -0.87
 
        
             
        
        
        
Answer:
There is one solution
Step-by-step explanation:
15x+11=8x
Subtract 15x from each side
15x-15x +11 = 8x-15x
11 = -7x
Divide by -7
11/-7 = -7x/-7
-11/7 =x
There is one solution