Speed = distance/time
20 miles divided by 4 hours = 5 mph
ANSWER : 5mph
Answer: "checking account balances"
Explanation:
If you had the options:
bartering
minting
checking account balances
The option "checking account balances" is the answer to your problem. In simple terms, this is the "money you have in the bank."
<em>Learn more about your problem here: brainly.com/question/678565</em>
Loud sounds would cause the ossicles to move too much, which would cause damage to the inner ear.
Answer:
a) We need to find p(x<68.15)
Standardize x to z, we have, z = (68.15-μ)/σ
=(68.15-57)/8.1
=1.38
Reading from standard normal tables,
p(z<1.38) =0.9162.
b) We need to find p(x>54.4)
Standardize x to z, we have, z = (54.4-μ)/σ
=(54.4-57)/8.1
=-0.32
Reading from standard normal tables,
p(z>-0.32) = 0.6255
