Answer:
Approximately 68% of the apples have diameters that are between 7.08cm and 7.78cm.
Step-by-step explanation:
The Empirical Rule states that, for a normally distributed random variable:
Approximately 68% of the measures are within 1 standard deviation of the mean.
Approximately 95% of the measures are within 2 standard deviations of the mean.
Approximately 99.7% of the measures are within 3 standard deviations of the mean.
In this problem, we have that:
Mean of 7.43cm, standard deviation of 0.35cm.
What percentage of the apples have diameters that are between 7.08cm and 7.78cm?
7.43 - 0.35 = 7.08 cm.
7.43 + 0.35 = 7.778 cm.
Within 1 standard deviation of the mean, so approximately 68% of the apples have diameters that are between 7.08cm and 7.78cm.
Step-by-step explanation:
distance between (12.-7) and (-3, -7)
=12+3
=15 units
Answer:
$21
Step-by-step explanation:
Given data
Principal= $20
Rate = 5%
time= 1 year
Required
The final amount A
Applying the simple interest formula
A= P(1+rt)
substitute
A=20(1+0.05*1)
A=20(1.05)
A=20*1.05
A=$21
Hence she will earn $21
Answer:
Step-by-step explanation:
The answer is C
Answer:
Step-by-step explanation:
Volume of the hexagonal pyramid =
Here sides of hexagonal base = 9 ft
So, Area of hexagon =
Height is given, 13 ft
So, volume =
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