12 square centimeters
Step-by-step explanation:
You just multiply the length x the width which is just 3 x 4
The answer is 0.2941.
Hope this helps!!
Answer:
Step-by-step explanation:
sub equation 1 into 2
2-5x=x²-2x-8
0=x²-2x+5x-8-2
0=x²+3x-10
0=(x-2)(x+5)
x=2 or x=-5
sub x into equation 1
y=2-5(2) or y=2-5(-5)
y=-8 y=27
Sinα=h/d
h=dsinα, since d=10km and α=13
h=10sin13 km
h≈2.24951km
h≈2.2 km (to nearest tenth of a kilometer)
