I do not know I will tell u but I think it is 65?
Answer:
7/15 is the probability of selecting a boy and a girl.
Step-by-step explanation:
Combination = nCr = n!/((n-r)!r!)
((7C1)(3C1))/(10C2)
= (7*3)/45
=21/45 = 7/15 the probability of selecting a boy and a girl.
Answer: B
Step-by-step explanation:
S = An/1 - r
A1 = 6
6/1 - (-1/4)
6/1 + (1/4)
6/1.25
S = 4.8 or 24/5
Answer:
19200 ft
Step-by-step explanation:
first you convert it based on 1 in = 20 ft
8*20=160
6*20=120
now you multiply to find area
remember area is a = lw
160*120=19200
add units
19200 ft
