Answer:
Q3. Last option Q4. 3rd option
Step-by-step explanation:
s^2 = 9.8^2+5.1^2-2(9.8)(5.1)cos39
s^2=44.366489...
s=6.7
Step 1
Instead of multiplying 24*7, you need to Find the mean of the past 7 months.
You are going to divide both sides by 5 so you can get u by itself