The weight of water in swimming pool is 13305600kg
Obtuse angle because is more than 90 degrees but less than 180 degrees.
Answer:
-21
Step-by-step explanation:
f(-3) = -4(-3)² + 15 = -4(9) + 15 = -36 + 15 = -21
Answer: 0.0001408
Step-by-step explanation: