Answer:
B. Stratified random sample is the correct answer
Answer: Car B traveled 60 mph.
Step-by-step explanation:
A= B-15
A: (B - 15)(2 hr)=D
B: (B)(1.5)=D
Since B and A traveled the same distance you can plug in 1.5B for D.
2B - 30 = 1.5B
-1.5B +30 = -1.5B
——————+30—
2(0.5B) = 2(30)
B = 60 mph
Answer:
Positive ; Positive
Step-by-step explanation:
Since there's a modulus, negative values also become positive
Answer:
there is nothing ?
Step-by-step explanation:
x=-3
This is because when a line is vertical, then it has an undefined slope and so it must have a value for x only. This shows it must be x=-3.
