Answer:
monthly cost = 641
Explanation:
Annual mortgage = 0.05×80000
= 4000
Monthly mortgage = 4000/12= 333
Annual average cost of house = 0.0409×100000 = 4090
Monthly average cost of house = 4090/12 = 341
Monthly cost = 333+ 341
= 674
Answer:
a = 132 m/s^2
Explanation:
f(t) = t^4 − 2t^3 − 6t^2 + 9t
v = f'(t) = 4t^3 - 6t^2 - 12t + 9
a = f''(t) = 12t^2 - 12t -12
Substitute t = 4 seconds into the equation for a:
a = 12(16) -12(4) -12 = 132 m/s^2
