Answer:
The second one, 160
Step-by-step explanation:
3+3+5+8=19, and 380/19=20 so each unit is 20cm
8 is the largest side --> 8*20 = 160
X=60° (equilateral triangle)
y=120°
Working: (360°-120°)/2
Answer:
Choice C
Step-by-step explanation:
1/2 x < 4 Isolate x by multiplying both sides by 2:-
x < 8
Answer:
k = 3.70
Step-by-step explanation:
Eliminate parentheses, then subtract the constant term on the left
8.5 +4 -10k = -24.5
-10k = -37 . . . . . . . . . . 12.5 subtracted from both sides
k = 3.70 . . . . . . . . . . . both sides divided by -10 (no rounding required)
