Answer:
In A and D the arrows are perpendicular, in B they are parallel and in C they are neither parallel nor perpendicular.
Step-by-step explanation:
Answer:
Lin
Step-by-step explanation:
5/7*2/2=10/14
3/2*7/7=21/14
10/14+21/14=31/14
I believe C because 1840+14%x2which would be the two years = 2355.20
Answer:
15000
Step-by-step explanation:
Given that a professor wants to know how undergraduate students at X University feel about food services on campus, in general. She obtains a list of email addresses of all 15,000 registered undergraduates from the registrar’s office and mails a questionnaire to 300 students selected at random.
Only 150 questionnaires are returned.
So the sample size changed to 150. But population is the number of registered undergraduates which do not change.
Population size = 15000
AB is 6 because you just subtract BC from AC to find the other missing length.
