Your answer should be 3x-x+2=4 hope this helps..
        
             
        
        
        
Answer:
1.8-9     
2. most often 
3.12-13
4.12-13
Step-by-step explanation:
i got it correct thats all i got to say
 
        
             
        
        
        
Answer:
Height of the streetlight ≈ 8 ft(nearest foot)
Step-by-step explanation:
The doc file displays the triangle formed from the illustration. x is the height of the street light. The distance from the gentle man to the street light is 10 ft. He  has a height of 5.6 ft  and the shadow formed on the ground is 24 ft long. The height of the street light can be calculated below.
The length of the tip of the shadow to the base of the street light is 34 ft. Similar triangle have equal ratio of their corresponding sides .
ab = 5.6 ft
The ratio of the base sides = 24/34
The ratio of the heights = 5.6/x
The two ratio are equal Therefore,
24/34 = 5.6/x
24x = 5.6 × 34
24x = 190.4
divide both side by 24
x = 190.4/24
x = 7.93333333333
x ≈ 8 ft 
Height of the streetlight ≈ 8 ft(nearest foot)
 
        
             
        
        
        
Answer:
(a) Increase the differences between the sample means this will increase the Numerator.
(b) Increase the sample variances will increase the denominator. 
Step-by-step explanation:  
F Ratio = Variance between treatments/ Variance within treatments.  
Here,  
(a) Increase the differences between the sample means:  
   - Will increase the Numerator and  
   - Size of the F-ratio would increase  
(b) Increase the sample variances:  
  - Will increase the denominator and  
  - Size of the F Ratio would decrease.
 
        
             
        
        
        
Find a common multiple in between the denominators.
10 and 3 and 5 -> the least common multiple is 30.
Change all the denominators to 30 by multiplying the top and bottom by the same number.
9/10=27/30
1/3=10/30
1/5=6/30
Subtract!
27/39-10/30-6/30=11/30
The answer is 11/30
Hope this helps!