Answer:
x = 149
Step-by-step explanation:
The transversal <em>t</em> crosses parallel lines <em>m</em> and <em>n</em> creating a number of angles. Both marked angles are above and to the right of the point of intersection, so they are <em>corresponding angles</em>.
Corresponding angles in this geometry have identical measures:
x° = 149°
x = 149
Answer:
s = 2/3
Step-by-step explanation:
15(s - 3) = 12s - 43
15s - 45 = 12s - 43
15s - 12s = -43 + 45
3s = 2
s = 2/3
Answer:
Step-by-step explanation:
Answer:
the sample standard deviation
Step-by-step explanation:
The statistic that would enable Dan to estimate the probability that any single class will last somewhere between 47 and 53 minutes is the sample standard deviation. If we have the mean and the standard deviation and we know that the lenghts of the classes form a normal curve, we can compute probabilities either with the empirical rule or using a table of probabilities from a book. The normal distribution is completely determined with the mean and the standard deviation.
Median of 10, 55, 34, 21
First we arrange number in ascending or descending
10, 21, 34, 55 in ascending.
Median is the middle number and this is between 21 and 34.
We find the average:
(21 + 34) /2 = 55/2 = 27.5
Median is 27.5.