Step-by-step explanation:

So sqrt(40) lies between 6 and 7.
 
        
             
        
        
        
Y = x + 3/4
x = y - 3/4
swap the variables:-
y = x - 3/4  (answer).   Its a.
        
                    
             
        
        
        
Answer:
2nd option
Step-by-step explanation:
Given
3x³ - 15x² - 4x + 20
step 1 ( group the first/second and third/fourth terms )
(3x³ - 15x² ) + (- 4x + 20)
step  2 ( factor each group )
3x² (x - 5) - 4(x - 5) ← note factor of - 4 ( not + 4 )
step 3 ( factor out (x - 5) from each term )
(x - 5)(3x² - 4)
 
        
                    
             
        
        
        
Scale :
Map 1 : Actual
1 cm   :  2 km
1 cm   :  200 000 cm          | Convert 2km to 200 000cm
Answer: The scale is 1 : 200 000 
Map 1 : Actual
1 cm   :  200 000 cm 
(x8)    :   (x8)
8 cm :  1 600 000cm
1 600 000 cm = 16 km
Answer: The length of the actual trail is 16 km
Map 1 : Map 2
8cm   :   6cm
1cm    :    0.75 cm
Answer : The scale is 1 : 0.75
Map 1 : Map 2
1    :  0.075 
3mm : 0.075 x 3 = 0.225mm
4mm : 0.075 x 4 = 0.3 mm
5mm : 0.075 x 5 = 0.375 mm
Answer: The side lengths are 0.225mm, 0.3 mm and 0.375 mm
        
             
        
        
        
Answer: It would be 1/2 divided by 5. In other words 1/2 times 1/5. That equals 1/10. Each plant would get 1/10 of a gallon each. To check you would multiply 1/10 times 5.<em> </em><em>That equals</em><em> </em><u><em>1/2</em></u>