Answer: 13
Step-by-step explanation:
I used Pythagorean theorem to solve this problem. As DC and AD is 12 and 5, you would do 12²+5²= c². 12²= 144 and 5²= 25. 144+25= 169. It doesn't end there. Do the square root of 169 ---> √169=13.
I’m not 100% sure but it might be 6x6 u should download mayhway .. it’s a good app
(4w-7)(4w-7) .
You need to find a multiplication that gives you 49 but at the same time when you add them it need to give you -56