This question is incomplete because the options are missing; here is the complete question:
Kareem wants to find the number of hours the average sixth-grader at his school practices an instrument each week. Which is the best way Kareem can get a representative sample?
A. He can randomly survey 50 boys in the school.
B. He can survey 30 students in the school band.
C. He can randomly survey 50 6th graders in the school.
D. He can survey 20 friends from his neighborhood.
The correct answer is C. He can randomly survey 50 6th graders in the school.
Explanation:
A representative sample is a portion of a population that shows the characteristics of all the population. In this context, for a sample to be representative it needs to include only individuals of the population that is studied. Also, ideally, individuals should be selected randomly as this guarantees the sample is not influenced by the researcher. According to this, option C is the best as this is the only one that focuses on the target population (6th graders) and the sample is random, which contributes to the sample being objective and representing the behavior of 6th-graders.
Answer:
The numbers are 229 and 27
Step-by-step explanation:
Let the numbers be x and y, where x>y.
Their sum is 256, so we have 
.
When we divide the larger number by the smaller number, the quotient is 8 and the remainder is 13.
We substitute the second equation into the first equation to get:
.
Answer: Mr. Hill, Mrs. Jackson, Mrs. Maury, Mr. Douglas
Step-by-step explanation:
Mr. Douglas = 9 / 50 = 0.18
Mrs. Maury = no need to change
Mrs. Jackson = 26% move it 2 steps to the left
Mr. Hill = same steps as Mr. Douglas but answer is 0.35
if this is correct please give me crown :D
Answer:
-(x - 7)(x + 6)
Step-by-step explanation:
Step 1: Factor GCF
-1(x² - x - 42)
Step 2: Factor quadratic
-1(x - 7)(x + 6)
36+54v
Multiply 6 with both 6 and 9v
