Answer:
A
Step-by-step explanation:
A: This is the best choice. She will get a survey sample of many students from different grades and the sample will be random. This will give accurate and unbiased results.
B: This would only give results of students in a math class, so the results would be biased.
C: This would only be surveying seventh grade students, when there are also other grades in the middle school. This would not give accurate results.
D. The question states that Nicole is surveying opinions of students. Asking the teachers, especially only the teachers in one hallway, will definitely not help to find the opinions of students.
Therefore, the correct choice is A: Random students as they enter school
Answer:
1218
(14x25)x3=1050
because you have three sides
14x12=168 then 168+168=336
then add al together 1050+336=1 386
Answer:
greatest to least: cindy, betty, alice
Step-by-step explanation:
multiply each amount by 20- 5 days times 4 weeks
3*20=60 for alice
25*3=75 betty
75*3=225 cindy
Answer: 155°
because ∠a and ∠c are 2 opposing angles => m∠a = m∠c = 155°
Step-by-step explanation:
Answer:
A) 4x + 3 = 35
Step-by-step explanation:
x = represents the number of friends he gave 4 pieces of candy to leading to 4x
Since he has three pieces that means you would add 3
Therefore, 35, the total pieces of candy , is what 4x+3 would equal to.