Answer: It should be the first one again.
Answer:
x = 20
Step-by-step explanation:
AE is an angle bisector, which means it cuts that triangle into 2 equal halves. So this means ∠BAE and ∠EAC should be equal to each other.
Set them equal to each other and solve for x.
∠BAE = ∠EAC
x + 30 = 3x - 10
40 = 2x
x = 20
Answer:
Step-by-step explanation:
4. 2x+8+3x+5=123 (ext∠)
5x=110
x=22
5. 25+2x+3=3x-17 (ext∠)
x= 45
6. 5x+2+6x+4=12x-4 (ext∠)
x= 10
Initially, -27 feet elevated to +164 feet.
Keep in mind, the sign.
Below: negative ; Above: positive.

At trail's end, Paula gained 191 feet of elevation.
Answer:
Step-by-step explanation:
3^2 + 1^2 = c^2 (diagonal squared)
9 + 1 = c^2
10 = c*2
is the length
It is irrational because the decimal repeats forever