The answer is A is equal to 2
Step-by-step explanation:
2b-3ac
=2×2-3×2×(-1)
= 4+6
=10
1. 10
2. 5√2 in
1. The ratio for a 30-60-90 triangle is x:x√3:2x
x is the shortest leg so 2*x =2*5 = 10
2. the ratio of a 45-45-90 triangle is x:x:x√2
x is one leg so x * √2 = 5*√2 = 5√2
The correct answer is that the focus is, <u><em>(0,−2)</em></u>