Where's the sample space? I need it to answer this question.
Answer:
x= -5
x= 9
Step-by-step explanation:
Answer:
45.3 miles/h
Step-by-step explanation:
The answer is 45.3 miles/h
The answer is C.
Here's why, nPr = n!/(n-r)!. Plug in 7 for n and 3 for r. And you get 7!/(7-3)!.
Thus, 7!/4! = (7*6*5*4*3*2*1)/(4*3*2*1), which simplifies to 7*6*5 = 210
