Here is a dot plot that shows the ages of teachers at a school. Which of these statements is true of the data set shown in the dot plot?
36 404 48 52 56 60 64
age in years
1. The mean is less than the median
2. The mean is approximately equal to the median.
3. The mean is greater than the median
4. The mean cannot be determined.

Sarah used her calculator to find sin 125 degrees. she wrote down sin sin125 degrees.57. how could sarah recognize that her answer is incorrect?

What does independent variable and dependent variable mean in math?

Statement reason 1. δabc is similar to δced. given 2. 3. definition of slope 4. slope of slope of definition of slope 5. slope of × slope of multiplying the slopes 6. slope of × slope of substitution property of equality 7. slope of × slope of simplifying the right side the table contains the proof of the relationship between the slopes of two perpendicular lines. what is the reason for statement 2? a. parallel line segments that meet a common perpendicular line are proportional in length. b. the lengths of vertical and horizontal sides in congruent triangles are in a common ratio. c. trigonometric identities determine the lengths of the legs in a right triangle. d. corresponding side lengths in similar triangles are proportional in length.