The height of an adult male is known to be normally distributed with mean of 175 cm and standard deviation of 6 cm. The 20th per
1 answer:
Answer:
The height below which 20% of the persons lie equals 169.95 cm
Step-by-step explanation:
Given that
Mean height = 175 cm
Standard deviation = 6 cm
Hence for the given question we need to find the standard variate factor ( Z factor) corresponding to the 20% of the area under the standard normal distribution curve
Using the standard normal distribution tables we have Z factor corresponding to an area of 20% equals ( Z = -0.84166)
Thus we have
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and
Step-by-step explanation:
Here, x represents the number of hours Zoe spent running on her wheel and y represents the number of hours spent scratching her cage.
Julie was awoke for at least an hour running on her exercise wheel and scratching the of her cage.
⇒
She ran on her wheel at least twice as long as she scratched at the corners of her cage.
⇒
Also, She spent more than 1/4 hour running on her wheel.
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And, we know that number of hours can not be negative.
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Therefore, the complete system of inequality which shows the given situation is,
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and
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Note: the feasible region ( covered by the given system) is shown in the below graph.
1. Consider square ABCD. You know that
then
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4.
5. Note that angles EGC and CGD are supplementary and
Then
Answer:
Answer:
Step-by-step explanation:
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The third choice seems to be the one you're looking for.