WILL DO BRAINLEYEST 40 PTS An oceanic vessel surveys the ocean floor using ultrasonic waves. The ocean beneath the boat is 4600 meters deep. If the ultrasonic wave travels to the bottom of the ocean and back to the boat in 6 seconds, what is its average speed?
A) 770 m/s
B) 1530 m/s
C) 7700 m/s
D) 27600 m/s

r and t.

both are 64 degrees.

, and

for

step-by-step explanation:

we can analyze the pattern at which the terms increase. let us denote , , , so that we can call

note the following:

the pattern: to get the next term value, we just add the next term number (e.g. 1st, 2nd, to the previous term value (term values are the given numbers in the question, 1, 3, 6, 10, 15,

from , to get to , we add

from , to get to , we add

etc.

we need to form a recursive formula, a formula that has the next term as a function of the previous term. so a possible recursive formula can be

, and for

answer: 80,000

step-by-step explanation:

the population doubles every day.

10,000*2=20,000 day 4

20,000*2=40,000 day 5

40,000*2=80,000 day 6

answer: the answer is e

step-by-step explanation: