Okay, well to start with, the equation for the circumference of a circle is C = 2(pi)r, and since we are given the radius (14 7/8ft) we can easily plug it in to this equation.
Now, for simplicity, I am going to put the fraction into decimal form.
14 7/8 = 14.875.
Now, plug it into the equation for circumference.
C = 2(pi)(14.875)
Use a calculator
C = 93.5, or about 93 1/2ft.
The closest estimate is 90ft.
Answer:
The score that cuts off the bottom 2.5% is 48.93.
Step-by-step explanation:
When the distribution is normal, we use the z-score formula.
In a set with mean and standard deviation , the zscore of a measure X is given by:
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
In this question, we have that:
What is the score that cuts off the bottom 2.5%
This is X when Z has a pvalue of 0.025, so X when Z = -1.96.
The score that cuts off the bottom 2.5% is 48.93.
The answer is A, because if you look, it 55 is the mid range.
Answer:
(x-8, y)
Step-by-step explanation:
The y-value stays the same, while the entire graph is moving 8 to the left.