Answer:
8
Step-by-step explanation:
*whispers* (there is a calculator online for that.)
Also the formula is a² + b² = c².
a yes
b no
c no
d yes
e yes
f no
[-6, -4, 2, 5, 8]
take the first number in each pair and put them in numerical order (least to greatest)
k=13
19 + 12k = –k − 20
19+20=39=13k
True
