The value of x is 30; hence 4x is equal to 120. That is because the sum of the angles of a triangle is 180. So, add x, x and 4x together, you get 6x. Divide 180 by 6, you get 30. Hope this helped!
        
             
        
        
        
2.25h(60m/hr)(1/3)=45m
So Rick spends 45 minutes studying math per night.
        
                    
             
        
        
        
Answer:

And we want to evaluate e^0 using the graph
And as we can see in the plot the y intercept is the blue point with y=0 and that correspond with:

Step-by-step explanation:
For this problem we know the following function:

And we want to evaluate e^0 using the graph
And as we can see in the plot the y intercept is the blue point with y=0 and that correspond with:

 
        
             
        
        
        
Answer:
2.57
Step-by-step explanation:
You first have to multiply the -5.3 times the -1.9. Once you do that, you get 10.07. Then, you add the -7.5.
Here are the equation steps:
(-7.5) + (-5.3)x(-1.9)
(-7.5) + (10.07)
2.57