Answer:
D) 
Step-by-step explanation:
Acceleration is the derivative of velocity, which is the derivative of position, so we must differentiate the function twice:
Position of Particle: 
Velocity of Particle: 
Acceleration of Particle: 
After
seconds, the acceleration of the particle is 
8 and 57/100 I don't think that you can simplify that much more than it is
Answer:
= 30.144 km²
Step-by-step explanation:
Area of a sector is given by the formula;
θ/360 × πr², where θ is the angle subtended by the arc to the center of the circle, and r is the radius.
Area = 54/360 × 3.14 × 8 × 8
= 30.144 km²
200 and 2n, hope this helps pls give brainliest