Answer:
20
Step-by-step explanation:
15+(-2)+7=13+7=20
Answer:
(5,14)
Step-by-step explanation:
4x+6=2x-4
2x=10
x=5
y=2x+4
y=2(5)+4
y=14
Answer:
2
Step-by-step explanation:
3 * n = 6
/3 /3
n = 2
Answer:
0.7569, 0.5729,0.4371
Step-by-step explanation:
Given that the books are of only two types either non dash fiction or fiction.
Also probability of selecting a fiction = 0.87 = p
X - no of books fiction selected is binomial with p = 0.87 and n =2
(since each trial is independent of the other and there are only two trials)
a) the probability that both books are fiction=

b) Here n =4 with same p.

c) Prob atleast one is non dash fiction =
This is not unusual since 0.4371 probability is not nearer to 0 it is almost half.
Answer:
I think its Symmetric Property.
Step-by-step explanation: