Rounding up, the answer would be 429,534
Answer:
B
Step-by-step explanation:
It is moving at 25 meters per second. Table B shows this
We have a15 = a1 + 14 x r and a21 = a1 + 20 x r <=> 29 = a1 + 14 x r and 47 = a1 + 20 x r;
Then, 47 - 29 = (20 x r + a1) - (14 x r + a1);
18 = 6 x r;
r = 3;
We have 29 = a1 + 42;
a1 = 29 - 42;
a1 = - 13;
Finally, a5 = a1 + 4 x r = -13 + 4 x 3 = -13 + 12 = -1.
Well the area is 13.2²π which = about 547.11 km² if that's what you're asking
