Answer:
The height of the pyramid is
Step-by-step explanation:
we know that
The volume of a square pyramid is equal to
we have
substitute and solve for h
Francesca is 4 years older than Winnie. If the product of their ages is 45, how old is Winnie?
2 answers:
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Answer:
The answer is explained below
Step-by-step explanation:
Given that:
mean (μ) = 7 and standard deviation (σ) = 1.5.
The z score is used in statistic used to measure the number of standard deviation by which the raw score is above or below the mean value. It is given by:
To find the Probability that x < 8.8, we first find the z score using:
From the z tables, P(x < 8.8) = P(z < 1.2) = 0.8849 = 88.49%