Answer:
No. Remember, a right angle must have a 90 degree angle. We can find the lengths with the Pythagorean Theorem.
Step-by-step explanation:
Given the length 7, 10, and 12, we can assume that 12 is the hypotenuse (it is the longest length). 
- we can use 7 and 10 interchangeably. 
Fill in the equation, 
                  where c = 12, and a or b = 7 or 10. 
To indicate if the given lengths would form a right angle, we can only input 7 or 10, not both. 
Therefore, 
 or 
 ==> 49 + b^2 = 144 ==> <u>b= </u>
<u> ==> </u><u>9.746</u>
b= 9.7, not 10.
 ==> 100 + b^2 = 144 ==> <u>b = </u>
<u> ==> </u><u>6.633 </u>
b= 6.6, not 7. 
Therefore, the lengths 7, 10, and 12, does NOT make a right triangle. 
Hope this helps!
 
        
             
        
        
        
Answer: Your answer is X=6
Step-by-step explanation:
10/3 = 20/x 
Determine the defined range 
10/3 20/x, x=0
Cross-multiply 
10x = 60
Divide both sides by 10 
x=6,x=0
Check if the solution is in the defined range 
SOLUTION x=6
<u><em>I HOPE THIS HELPS IF NOT THE SORRY</em></u>
<u><em></em></u>
 
        
             
        
        
        
While linear<span> equations are always straight, </span>nonlinear<span> equations often feature curves.</span>
        
                    
             
        
        
        
3/2
<em>Step One:</em> 1 3/8, transform the number into a improper fraction:
- To have a mixed number in to a improper fraction, you need to use            addition and multiplication.  For 1 3/8, We first multiply the denominator (8, also know to be the bottom number of the fraction) to the whole number (1).  8x1= 8
 - NOTE: The original denominator (8) will be use for are improper, again playing as the denominator, we only multiply the denominator for the numerator (which is the top number of a fraction).
 - After multiplying, we'll add are product with the numerator (3) for the process. 8+3= 12 
 - Now we have both numerator and denominator for 1 3/8, we can create the improper fraction. 12 as the numerator and 8 as the denominator. 12/8
 - We still need to simplify the number. To that, we need the biggest whole number, or rather I call it the lowest number, that can be divide both in 12 and 8.
 -  4 can be divide by both number so: 12/4= 3 and 8/4=2
 - Now 3 is are simplify numerator and 2 is are simplify denominator.