Answer:
The random sample is D. The other 3 cannot be taken as random since they involve groups at a specific place or doing a specific thing.
Step-by-step explanation:
The absolute value function is:

To translate it we need to remember the following rules:
Using this table we conclude that the function we are looking for is:
Answer:
1/3 of cake batter in each cup cake
Step-by-step explanation:
Answer:
252 cubic yards
Step-by-step explanation:
So to find the volume, we need to multiply the width, length and height. So we have 12*7*3 or 84*3 or 252.
Answer:
Q1) D
Q2) C
Step-by-step explanation:
Q1)
y ∝ x
y = kx
Let x=-1,y=2
2 = k(-1)
k = -2
Q2)
directly (y=kx)
Let x=2,y=4
4 = k(2)
k = 2
y = 2x
inverse (y = k/x)
Let x=2,y = 4
4 = k/2
k = 8
xy = 8