Answer:
B
Step-by-step explanation:
Here, we are told that the rectangle is enlarged by a factor of 6, we now want to calculate the new area of the said rectangle.
Now, for the rectangle to have an area of 20, mathematically the area of a triangle can be calculated using the formula L * B
where L is the length and B is the breadth 
our product here is 20, so any product that gives 20 would be a good fit as the value of the width and length of the rectangle 
So, let’s say the sides measure 5 inches by 4 inches 
Enlarging these by a factor of 6, we have 30 inches by 24 inches 
The new area of the rectangle would thus be ; 
30 inches * 24 inches = 720 inches^2
 
        
                    
             
        
        
        
Answer:
Step-by-step explanation:
1 . 
- x - 8 < 13
- x < 8 + 13
- x < 21
2. 
- x - 8 > -13
- x > 8 - 13
- x > -5
<u>Combined answer</u>
 
        
             
        
        
        
Find the total minutes:
15 + 30 + 25 + 35 = 105 minutes
This is equal to 1 hour and 45 minutes
Subtract 1 hour and 45 minutes from 9:30
She woke up at 7:45 am
 
        
             
        
        
        
9514 1404 393
Answer:
   9 7/12
Step-by-step explanation:
12 is a suitable common denominator.
   (7 3/4) + (1 5/6) = (7 9/12) + (1 10/12) = (7+1) +(9/12 +10/12)
   = 8 + 19/12 = 9 + 7/12 . . . . . . change 19/12 to 1 7/12
   = 9 7/12
_____
My calculator works with mixed numbers very nicely, as many graphing calculators do. 
 
        
                    
             
        
        
        
Answer:
Step-by-step explanation:
This is written in vertex notation, meaning that (c,d) is the vertex. We know that c is positive and d is negative, meaning the vertex will be in the 4th quadrant. As for whether the parabola opens upwards or downwards, the quadratic term has a positive coefficient of 1, meaning the parabola opens upwards.
Hope this helps!