Answer:
It will be biased.
Step-by-step explanation:
By surveying only grades 1, 2, and 3, she is not taking a representation of the entire school. It is possible that the popular color or the color the students like would change over time and the opinion of the younger kids could be different from that of the older kids. Therefore, the sample is biased unless she surveys students from all grades.
Answer: Find the area of the parallelogram. Answer is A=54
6 cm
7.5cm
9cm
Step-by-step explanation: get the base and the height and then multiply
Answer:
144 it is D
Step-by-step explanation:
Just finished this for another student.
Length = 9
Answer: x^2+9x+20
Step-by-step explanation:
To find the area you multiply the sides so it should be (x+4)(x+5) which is x^2+9x+20. Good luck!
