I will rate and love if question is done correctly. A middle school principal wants to know how many of her school's 1500 sixth, seventh, and eighth grade students are interested in a field trip. She asks every fifth student from an alphabetical list of the 450 students that went on the previous field trip. Which statements are true? Select ALL the true statements.

A - The sample includes only students who went on the previous field trip.
B - The sample is representative of the population.
C - The population is all seventh grade students.
D - The sampling method is random.
E - The sample is biased.

Step-by-step explanation:

hope it you

step-by-step explanation:

sin(7pi/6 - pi/3)  

= sin(7pi/6 - 2pi/6)  

= sin(5pi/6)  

= sin(pi - pi/6)  

= sin(pi/6)  

= 1/2  

sin 7pi/6 - sin pi/3  

= sin (pi + pi/6) - sin pi/3  

= -sin pi/6 - sin pi/3  

= -1/2 - sqrt(3)/2  

= -(1+sqrt(3))2

option: d is the correct answer.

d) none of the above.

step-by-step explanation:

clearly from the figure attached to the question we could see that there is no shape given. hence without any shape given in the figure and after rotation we can't obtained a square pyramid.

since, to obtain a image we need a proper figure of the pre-image so that it can be transformed.

hence, the correct answer is:

d) none of the above.

step-by-step explanation: