So, first you would need to multiply 6 by $35.50, then take that number and add it to the $420 to get $633.00. Then you need to multiply $310.75 by 4. After take that $1243.00 and subtract $633.00 from it to get $610.00. So, the answer is: Broderick would need to add at least $610 to his account to cover his checks.
        
             
        
        
        
Answer:
The family of possible values for  are:
 are:

Step-by-step explanation:
By Linear Algebra, we can calculate the angle by definition of dot product:
 (1)
 (1)
Where:
 - Angle between vectors, in sexagesimal degrees.
 - Angle between vectors, in sexagesimal degrees.
 - Norms of vectors
 - Norms of vectors  and
 and 
If  is acute, then the cosine function is bounded between 0 a 1 and if we know that
 is acute, then the cosine function is bounded between 0 a 1 and if we know that  and
 and  , then the possible values for
, then the possible values for  are:
 are:
Minimum ( )
)

Maximum ( )
)

With the help of a graphing tool we get the family of possible values for  are:
 are:

 
        
             
        
        
        
Answer: Margret grew faster than donovan 
Step-by-step explanation:
 
        
             
        
        
        
Yes because by looking at the figure above i could say that the second option is correct
        
                    
             
        
        
        
Answer:
It's not
Step-by-step explanation:
To know this, you have to put a zero to the right.
So it'd be 34.3210, and as you can see, 34.3211 is greater