A square since all sides are equal and the angles aren't acute so it can't be a rhombus
Sorry if my writing is sloppy
Lines AB and AC are equal so you set up an equation like so...
4x + 1 = 2x + 23
Subtract 1 from both sides.
4x = 2x + 22
Subtract 2x from both sides.
2x = 22
Divide.
x = 11
Now you need to plug in 11 into 3x - 8.
3(11) - 8
= 33 - 8
= 25
So BC is 25.
I hope this helps love! :)
Answer:81030m
Step-by-step explanation:1km=1000m, 81km=81000+30=81030m
Multiply by -4 on both sides.
this makes z<-8