To find the mean (average), we first need to add up all the test scores (14 + 19 + 19 + 20 + 16 + 18 + 15 + 17 + 12 = 150). Then, we need to divide that number (150) by the number of numbers in the data set (9 in this case). So the mean of these test scores is about 16.6666666667.
Perpendiculars are any lines that intersect to make or forms a right angle.
Answer:
636w
Step-by-step explanation:
producto = ×

Answer:
acute, small, and 13•
Step-by-step explanation:
hope this helps^^