The scores of 4th and 5th graders on a test about polygons and their characteristics are summarized below

Part A: In which grade did the students do the best? Answer; 4th grade, they have a higher median of 68

Part B: what best describes the shape of the two graphs? 5th grade is roughly symmetrical without letters in fourth grade is skewed right

Step-by-step explanation: That’s for the answers for the 3rd question on Topic 4 of Section 9. Hope that helped:))

answer: cos [   arcsin (3/5) - arccos (1/2) ] =

step-by-step explanation: × = 3/5 = 0.6--> x = 36.87 and x = 180 - 36.87 = 143.13 deg

cos y = 1/2 --> y = +- 60 deg a. cos (x - y) = cos (143.13 - 60) = cos 83,13  

=

0.12

b. cos (36.87 - 60) = cos (-23.23) = 0.92

what are you trying find out?

step-by-step explanation: