let t = time (hrs) that they are 50 mi apart
Use pythag here; a^2 + b^2 = c^2; dist = speed * time
(30t)^2 (40t)^2 = 50^2
900t^2 + 1600t^2 = 2500
It's obvious that t = 1 hr
X to power of 3 + 5 is how you would write it
Answer:
Use the information in the table to select the true statement.
A.
The 3rd nap is the least consistent in duration because its mean is the lowest.
B.
The 3rd nap is the least consistent in duration because its standard deviation is the highest.
C.
The 1st nap is the least consistent in duration because its mean is the highest.
D.
The 2nd nap is the least consistent in duration because its standard deviation is the lowest.
Step-by-step explanation:
The answer is the third one
Answer:
266.6 per year
Step-by-step explanation:
53392 / 20 = 266.6
= 266.6 per year
