Answer:
Assuming the similarity is that BC scales to EF, answer is
D. 1.5BC
Step-by-step explanation:
Because the triangles are smilar, AB/BC = DE/EF
If AB = 2BC
then DE = 2EF
but also DE = 3BC
so 2EF = 3BC
EF = 1.5BC
Answer:
y=12°
x= 20°
Step-by-step explanation:
5y=60
y=60/5=12
3x+60+60=180
3x=180-120=60
x=60/3=20
Answer:
±10 i
Step-by-step explanation:
sqrt(-100)
We know that sqrt(ab) = sqrt(a) sqrt(b)
sqrt(-1) * sqrt(100)
sqrt(-1) = i
i * ±10
±10 i
