Answer:
j=13.10
k=8.40
Explanation:
First to find k you use
SOHCAHTOA
but using TOA which
tan40°=k/10
tan40°=0.8391
cross multiply
k=0.8391*10
k=8.391
k to the nearest tenth =8.40
Then to find k using the Pythagoras theorem
j^2=10^2 + (8.4)^2
j^2=100+70.56
j^2=170.56
take square root
j=√(170.56)
j=13.06
to the nearest tenth= 13.10
