Answer:
40√3
Step-by-step explanation:
(4√2)(5√6) = 40√3
 
        
             
        
        
        
Slope = 
So taking 2 points (0,0) and (60,120)
we have slope = (120-0)/(60-0) = 120/60 = 2
general equation of linear graph is y=mx+b with m be the slope
so y=2x+b
Now to find b, just plug any point of the graph in, such as (0,0)
so we get something like 0=2(0) + b => b=0
So your equation is y=2x
 
        
             
        
        
        
Answer:
3/5
Step-by-step explanation:
0.6 is actually 6/10 as a fraction. You divide bot the 6 and the 10 by 2 to get 3/5
 
        
             
        
        
        
-10 is less than -5 because negative numbers are farther from 0. Same applies to -4 and -20.
 
        
             
        
        
        
This looks like scalar matrix multiplication. The idea here is to multiply the scalar 3 by each item inside the matrix.
Doing so leads to the answer [3   -12    15    -21]
Side note: I'm assuming the matrix given to you has 1 row and 4 columns.