Answer:
Step-by-step explanation:
14.
by pythagoras,s theorem
15.
first perpendicular=y(say)
and second perpendicular=z (say)
y²=9²+7²=81+49=130
z²=y²+5²=130+25=155
x²=z²+4²=155+16=171
x=√(171)
Answer: 6 Kilometers
Step-by-step explanation:
1 kilometer = 1000 meters
6 kilometers=6000 meters
6 x 1000=6000
Answer:
Step-by-step explanation:
(-3x+x)=kx+9
-2x=kx+9
-2x-kx=9
x(-2-k)=9
x=9/(-2-k)