The reference angle is the positive angle formed by the terminal side of the angle and x-axis:
7 π / 6 = 210° = 180° + 30°
Answer: The reference angle is 30°.
#1) d) large
#2) b) 80
#3) b) 3300
There were more responses for large in the survey, so they should focus on large.
There were 120 medium and large shirts sold out of 150 total sold:
120/150 = 0.80 = 80%
There were 11 out of 150 shirts sold that were small:
11/150(45000) = 3300
Answer:
A) 10-14
B) 45
C) 6.7%
Step-by-step explanation:
A) The interval that contain the most values can be gotten by looking at the histogram and selecting the interval with the highest frequency. Hence the interval 10-14 contains the most values because it has a frequency of 20.
B)The total number of swimmers is gotten by summing all the frequency of each individual lap. Hence:
Total swimmers on team = 10 + 12 + 20 + 0 + 3 = 45 swimmers
C) The percentage of swimmers who swam more than 14 laps = (number of swimmers that swam more than 14 laps/total swimmers) * 100%
The percentage of swimmers who swam more than 14 laps = [(0 + 3)/45] * 100% = (3/45) * 100% = 6.7%
I am positive the answer is B
Let me know if i am wrong and ill correct it