Answer:

Step-by-step explanation:
Rewrite the Pythagorean Theorem equation in terms of
.

Subtract b squared from both sides.

172/387 = 4/t
Let t = time to travel 387 miles
172t = 4(387)
172t = 1548
t = 1548/172
t = 9
Answer: 9 hours
It’s the first answer. The function is y = x*2