Answer:
Step-by-step explanation:
7000/85 = 1400/17
or 82.352941
To solve this problem, we use the formula:
z = (x – u) / s
where z is the z score value which can be obtained from
the tables, x is the sample value, u is the mean = 6.3 min, and s is the std
dev = 2.2 min
at P value = 0.90, the z = 1.28, finding for x:
x = z s + u
x = 1.28 * 2.2 + 6.3
x = 9.116
at P value = 1.0, the z = 3.49, finding for x:
x = z s + u
x = 3.49 * 2.2 + 6.3
x = 13.978 ~ 14
Therefore the longest 10% calls last about 9.1 minutes to
14 minutes
Answer:
C is the answer because i had that question
Step-by-step explanation:
C is the answer becausei had that question
Answer:
y=7
Step-by-step explanation:
2x7=14
3x7=21
5x7=35
14x21x35=10,290
Here is how to work the problems and write the expressions.
