Answer:
Volume of the Pyramid=
Step-by-step explanation:
The Pyramid have the base in the shape of a square.
Perimeter of the square shaped base=
Length of side(a) of the base
Volume of a square based pyramid:
=
Putting the values in the formula:
Volume of the pyramid=
The Volume of the Square based pyramid is
3/10 multiply with 8 on both numerator and denominator
therefore, 3/10 = 3x8/10x8 = 24/80
Answer:
2 laps per minute
0.5 minutes per lap
Step-by-step explanation:
The original ratio is 12 laps in 6 minutes, or
To find the unit rate, you divide the numerator by the denominator to find the amount per one.
laps per minute:
, 2 laps per minute
minutes per lap:
, 0.5 minutes per lap
Answer:
The proportion of babies with birth weights of 6 pounds or less is 0.1056 = 10.56%.
Step-by-step explanation:
Normal Probability Distribution:
Problems of normal distributions can be solved using the z-score formula.
In a set with mean and standard deviation , the z-score 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 p-value, we get the probability that the value of the measure is greater than X.
Average birth weight of babies was 7.5 pounds and the standard deviation was about 1.2 pounds.
This means that
Find the proportion of babies with birth weights of 6 pounds or less.
This is the pvalue of Z when X = 6. So
has a pvalue of 0.1056
The proportion of babies with birth weights of 6 pounds or less is 0.1056 = 10.56%.