Find slope of line A:
Move into slope-intercept form y = mx+b
<span>5x + 8y = -9
8y = -5x - 9
y = (-5/8)x - 9/8
The slope of line A is -5/8.
If </span><span>Line B is perpendicular to line A, then
slope Line B = negative reciprocal of slope Line A</span>
<span>slope Line B = 8/5
So like B has the equation
y = (8/5)x + b
If it passes through (10,10), we know that when x = 10, y = 10. Use those values to solve for b:
</span>
<span>y = (8/5)x + b
10 = (8/5)·10 + b</span>
<span>10 = (8)·2 + b
10 = 16 + b
b = -6
So line B has equation </span>
<span>y = (8/5)x - 6 
m = 8/5 and b = -6
so
m + b = 8/5 - 6 = 8/5 - 30/5 = -22/5
So m+b = -22/5 or -4.4 in decimal form
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Answer:
∠MNO = 75°
Step-by-step explanation:
∠mno = 1/2 ( arc MLP - arc MOP ) 
arc MLP = 241 and arc MOP = 91
so ∠MNO = 1/2 ( 241 - 91 ) 
241 - 91 = 150 
150/2 = 75
Hence, ∠MNO = 75°
 
        
                    
             
        
        
        
Answer:
4/2, 2/7, 1/2, 5/6 is your answer
 
        
                    
             
        
        
        
Answer:
21 packages
Step-by-step explanation:
4 ÷3/16= 4 x 16= 64/3=21 1/3 .     21 packages
hope this helps :)
 
        
             
        
        
        
Her birthday took place on a Saturday. :)