Frequency describes the number of waves that pass a fixed place in a given amount of time.
Answer:
Step-by-step explanation:
You have to multiply each term by everything. For example if you have, (5z-6)(2z-4) the distributive property can be written out to help show what you have to do, if you write it as a step it would be 5z(2z-4)-6(2z-4). I hope this helps, good luck!
Answer:
gallons of juice altogether [or, 10 gallons 3 quarts]
Step-by-step explanation:
4 quarts = 1 gallon
So 2 quarts would be 1/2 gallon
Thus,
we have:
4 1/2 gallons in first container
Next container holds 1 3/4 MORE, so that container holds:
gallons
In total, the number of gallons is:
gallons
or 10 gallons and 3 quarts
Answer:
4.75% probability that the battery will last more than 9 hours before running out of power
Step-by-step explanation:
Problems of normally distributed samples are solved using 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 problem, we have that:
What is the probability that the battery will last more than 9 hours before running out of power g
This is 1 subtracted by the pvalue of Z when X = 9. So
has a pvalue of 0.9525
1 - 0.9525 = 0.0475
4.75% probability that the battery will last more than 9 hours before running out of power