CosA=(21^2+23^2-25^2)/2*21*23
cosA=345/966
A=cos^-1(345/966)
A=69.08
Answer:
2 significants choes the least significant digets which is 19.35
result is 221,267.25
Answer:20
Step-by-step explanation:4:9
9x5=45
4x5=20
20:45
Answer:
divide
Step-by-step explanation:
and youll find the answer