Answer:
Answer:
your answer is
m= -3  
Math-way is a really good site for these kinds of problems i would recommend it if you need anymore help with stuff like this. :)
Step-by-step explanation:
 
        
             
        
        
        
Answer:
Step-by-step explanation:
Estimating a sum by rounding to get the best estimate is the goal of this lesson. Notice that we try to estimate. We don't need to have an exact answer!
Notice that for numbers with two digits, there can only be one estimate because you can only round to the tens place.
Estimate the following sums: 36 + 21, 74 + 15, and 85 + 24
36 + 21 = 40 + 20 = 60
74 + 15 = 70 + 20 = 90
 
        
                    
             
        
        
        
Answer:
-1
Step-by-step explanation:
given f(x)=-4x+7 find f(2) 
f(2) means question : if x=2, f(2)=?
f(2)= -4x2+7=-1
 
        
             
        
        
        
Answer:
4
Step-by-step explanation:
24÷6
6 x ? = 24
6 goes into 24 four times 
24÷6=4
 
        
                    
             
        
        
        
Answer:
A. Increase by 2
Step-by-step explanation:
Given that a  fitted multiple regression equation is 

This is a multiple regression line with dependent variable y and independent variables x1, x2, x3 and x4
The coefficients of independent variables represent the slope.
In other words the coefficients represent the rate of change of y when xi is changed by 1 unit.
Given that x3 and x4 remain unchanged and x1 increases by 2 and x2 by 2 units
Since slope of x1 is 5, we find for one unit change in x1 we can have 5 units change in y
i.e. for 2 units change in x1, we expect 10 units change in Y
Similarly for 2 units change in x2, we expect -2(4) units change in Y
Put together we have
 change in y
 change in y
Since positive 2, there is an increase by 2
A. Increase by 2