Answer:
Area of a triangle=1/2base x height
1/2x12x4
6x4
24units
Perimeter is the distance round the given figure
9+12+5
26units
Answer:
(sinx+cosx)²=sin2x+1
RHS
sin2x+1. (sin2x=2sinx*cosx)
2sinx*cosx+1. (sin²x+cos²x=1)
2sinx*cosx+sin²x+cos²x.
(sinx+cosx)²
Distance=speed x time
speed=68 miles/hour
time=4 hours
Distance=(68 miles/hour)(4 hours)=272 miles.
Answer: he traveled 272 miles.
Answer - 17
Explanation- Good luck