Let the smaller number be x.
Larger number = 12 + x
Sum = 84
x + 12 + x = 84
2x + 12 = 84
2x = 72
x = 36
Hence, the numbers are 36 and 48.
Answer:
p99 = 16.4 inches
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.
Men have hip breadths that are normally distributed with a mean of 14.3 in. And a standard deviation of 0.9 in.
This means that 
Find p99.
This is the value of X when Z has a p-value of 0.99, so X when Z = 2.327. Then




So
p99 = 16.4 inches
Answer: 20%
Step-by-step explanation: 68 + 272 = 340 68/340= 0.2 0.2 * 100= 20%
B. the diagonals are congruent - the graph represents two equal, parallel lines, making the two segments congruent
Since a quantity is a variable that could be described in terms of numbers, then the quantities that can be measured exactly be integers would be, say, the amount of houses to be supplied with power and the number of people in the household. A fraction could never be a possible amount, because a person and a house is counted as one whole.