Answer:It would take 1.700 hours.
Step-by-step explanation:
 
        
                    
             
        
        
        
To cover at least 170.5 sq.ft. the width must be at least 11 feet
W=170.5sq.ft / 15.5 ft = 11ft
        
             
        
        
        
Answer:
<h3>formulas</h3>
<em><u>frequency</u></em><em><u>=</u></em><em><u>spee</u></em><em><u>d</u></em><em><u>/</u></em><em><u>wavele</u></em><em><u>ngth</u></em>
<em><u>f</u></em><em><u>=</u></em><em><u>2</u></em><em><u>5</u></em><em><u>0</u></em><em><u>/</u></em><em><u>5</u></em><em><u>0</u></em>
<em><u>f</u></em><em><u>=</u></em><em><u>5</u></em><em><u>0</u></em><em><u>h</u></em><em><u>z</u></em>
 
        
             
        
        
        
Answer:
   m∠CDE = 35°
Step-by-step explanation:
The exterior angle CDE is equal to the sum of the opposite interior angles, BCD and DBC. So, you have ...
   6x -13 = (2x+10) +(x +1)
   3x -24 = 0 . . . . . . . . . . . . subtract the right side, simplify
   x -8 = 0 . . . . . . . . . . . . . . divide by 3
   x = 8 . . . . . . . . . . . . . . . . . add 8
   6x -13 = 6·8 -13 = 35 . . . . substitute for x in the expression for CDE
The measure of angle CDE is 35°.
 
        
             
        
        
        
1. is 8
2. is 4
Subtract them by the percentage