Answer:
D
Step-by-step explanation:
to be a function you cannot have different y values for the same x, in B for example when x = 3 you have two different values for y (3,7) and (3,8)
D is the only choice where each value of x only has one value for y
Answer: Cluster sampling technique
Step-by-step explanation:
Cluster sampling is any sampling procedure that the statistics can be divided into a finite
number of distinct and identifiable units, the most of groups or clusters in the statistics will correctly represent the total students that are interviewed in the class.
B for Brats and H for Hamburgers
3 total for each of 30 guests
B + H = 3x30 = 90
Then $1.25B + $0.75H <= to $120
Solving for B=90-H
1.25B + 0.75(90-B) <=120 yields cost of B is $52.50 so B = 42.
90-42 = 48 H
So you can buy 42 Brats and 48 Hamburgers
Answer:the average this year is $13284
Step-by-step explanation:
Engineering students at riverside college last year received, on. Average, $11,070 in scholarships and grant money. This year, the average is 20% higher. The value of the increase would be
20/100 × 11070 = 0.2 × 11070 = $2214
Therefore, the average this year would be the sum of the average last year and the value of the increase. It becomes
11070 + 2214 = $13284
