Answer:
no solution
Step-by-step explanation:
if you plug in y=8-3x to 5y,
5(8-3x) the x's cancel out
40=20
^no real solution
It is 180 degrees- hope this helps!
The answer is only I and II
Answer:
do you mean in simplist form?? if so...
Step-by-step explanation:
5/7=5/7
2/6=1/3
This problem is a combination of the Poisson distribution and binomial distribution.
First, we need to find the probability of a single student sending less than 6 messages in a day, i.e.
P(X<6)=P(X=0)+P(X=1)+P(X=2)+P(X=3)+P(X=4)+P(X=5)
=0.006738+0.033690+0.084224+0.140374+0.175467+0.175467
= 0.615961
For ALL 20 students to send less than 6 messages, the probability is
P=C(20,20)*0.615961^20*(1-0.615961)^0
=6.18101*10^(-5) or approximately
=0.00006181
