It is always because if you have an improper fraction, the larger number is always the numerator. To get a reciprocal, you flip the fraction so that the denominator is the numerator, and vice versa. If the numerator is always bigger, and you make it the denominator, it would be proper.
        
             
        
        
        
It is not possible. Since one of the angles has to be a right angle, the other two angles would have to add to 90. Therefore, neither of these angles can be more than 90 degrees. 
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Answer:

Step-by-step explanation:
Instead, since the divisor is in the form of  , use what is called Synthetic Division. Remember, in this formula,
, use what is called Synthetic Division. Remember, in this formula,  gives you the OPPOSITE terms of what they really are, so do not forget it. Anyway, here is how it is done:
gives you the OPPOSITE terms of what they really are, so do not forget it. Anyway, here is how it is done:
4| 1 −5 7 −12
 ↓ 4 −4 12
_______________
 1 −1 3 0 → 
You start by placing the  in the top left corner, then list all the coefficients of your dividend [x³ - 5x² + 7x - 12]. You bring down the original term closest to
 in the top left corner, then list all the coefficients of your dividend [x³ - 5x² + 7x - 12]. You bring down the original term closest to  then begin your multiplication. Now depending on what symbol your result is tells you whether the next step is to subtract or add, then you continue this process starting with multiplication all the way up until you reach the end. Now, when the last term is 0, that means you have no remainder. Finally, your quotient is one degree less than your dividend, so that 1 in your quotient can be an
 then begin your multiplication. Now depending on what symbol your result is tells you whether the next step is to subtract or add, then you continue this process starting with multiplication all the way up until you reach the end. Now, when the last term is 0, that means you have no remainder. Finally, your quotient is one degree less than your dividend, so that 1 in your quotient can be an  , the −1 [
, the −1 [ ] follows right behind it, and bringing up the rear, comes the 3, giving you the quotient of
] follows right behind it, and bringing up the rear, comes the 3, giving you the quotient of  .
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I am joyous to assist you anytime.
 
        
             
        
        
        
Answer:
Step-by-step explanation:
Let x = third side
Using the Triangle Inequality theorem which states that the sum of two sides of a triangle must be longer than the third side and the difference of the two sides is the lower limit of the third side, the answer to your question is that the third side must be between 3 and 13, or written using inequalities, 3 < third side (or x) < 13 is the range.
 
        
             
        
        
        
Answer:

Step-by-step explanation:
