I'm pretty sure the formula to calculate B would be the square root of d + 4ac.
Answer:
a = 16
Step-by-step explanation:
inversely proportional
y = k/x
a = k/b
5 = k/4
solve for k
multiply by 4 on each side
20 =k
a = 20b
if b = 4/5
a = 20 * 4/5
a = 16
This is true. <em /><em>Adjacent angles have a common vertex and a common side. </em>
Adjacent angles are supplementary and are on the same line.
I hope this helps!
~kaikers
