Look like both B and D are correct answers. because 23*400=9200 and 26*400=10400
Process:
1. 21+24n= 7
2. 24n= 7 - 21
3. 24n= -14
Answ: n= -7/12
Answer:
10*9*4=360
Step-by-step explanation:
Volume = Length * Width * Height
Answer:
What I think are the answers are C,D, and A, hope this helps.
Step-by-step explanation:
a) 
because it is equal to the area of the shaded region between X=4 and X=6, and the probability that X falls within some interval is given by the area under the PDF.
b) 
because the shaded region is a rectangle of height 1/5 (by virtue of X following a uniform distribution over the interval [2, 7], which has length 5).
