Answer:
± 4i![\sqrt{5}](https://tex.z-dn.net/?f=%5Csqrt%7B5%7D)
Step-by-step explanation:
= ![\sqrt{16(5)(-1)}](https://tex.z-dn.net/?f=%5Csqrt%7B16%285%29%28-1%29%7D)
=
×
×![\sqrt{-1}](https://tex.z-dn.net/?f=%5Csqrt%7B-1%7D)
= 4
i → [
= i ]
Answer:
x=68
y=112
Step-by-step explanation:
x+52+60=180 (interior angle of a triangle)
x+112=180
x=180-112
x=68
x+y=180
68+y=180
y=112
Hello,
y=2x+1
x=2y+1 exchange x and y
==>2y=x-1 solve for y
==>y=(x-1)/2
==>y=x/2-1/2
Answer A