Answer:
13.9 sorry if I'm wrong just trying to help.
Step-by-step explanation:
first plug in your numbers
a*2+ b*2= c*2
12*12= 144
7*7=49
144+49= 193
square root of 193: 13.89244399
rounded to nearest tenth is 13.9
80
Pi^2 = 9.86960440109
B
A check is an I.O.U. or a promissory note.
Answer: 36
Equation: 12=6+x; x^2
1. Solve for x. X=6
2. Find x^2 or 6^2= 36.