Answer:
Step-by-step explanation:
The radius, r of the expanding circle of oil is modeled by the function:
, where s is time in seconds.
When s=5
Radius
Area of a circle
Therefore, the area of the oil spill when s=5 seconds
The area of the spill when s=5 seconds is 45pi square inches.
For the given question above, if the cos <span>30Á = square root 3 over 2, then the sin 60Á = square root over 2. Square root over 2 is the correct answer because they are just complimentary. I hope this answer helps. Looking forward to help you again.</span>
Answer:
Step-by-step explanation:
They are both technically right 7 time 9 is 63 but 7 time 9 is equivalent to 9 times 7