C it’s what I chose for it
Answer:
a) h'(t)= (6cos3t,-9sin3t,3
cos3t)
b) t=0.93994736+πn/3
c) Magnitude of h(t) is 3 which is a constant, so h(t) lies on a sphere
Step-by-step explanation:
400 divided by 42 = 9.523809
.45 * 120 = 54
.072 * 54 = 3.888
54 + 3.888 = 57.888= $57.89