Answer:75
Step-by-step explanation:
Answer:
Gcvmjedbgkje2m
Step-by-step explanation:
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Answer:
0.0668
Step-by-step explanation:
Assuming the distribution is normally distributed with a mean of $75,
with a standard deviation of $12.
We can find the z-score of 78 using;


Using our normal distribution table, we obtain the area that corresponds to 0.25 to be 0.9332
This is the area corresponding to the probability that, the average is less or equal to 78.
Subtract from 1 to get the complement.
P(x>78)=1-0.9332=0.0668
Answer:
a) pyramid / prism
b)cuboid / rectangle
Step-by-step explanation:
Answer:
simplifies to 
Step-by-step explanation:
Given expression 
We have to simplify the above expression,
Consider the given expression 
Multiply each term in brackets by
, we get,

Solving further, using
we get,

Thus,
simplifies to 