Answer: 32/35
Step-by-step explanation:
got it correct
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
Answer:
I would prefer scientific because depending how big a the number is scientific makes it the number visible smaller
Step-by-step explanation:
The diagonal of a square is obtained by using Pythagorean theorem. Letting x be the side of the square,
x² + x² = 14²
Solving x from the equation gives x a value of approximately 9.899 m. The perimeter of a square is four times the length of its side. Thus, the perimeter of the square is approximately 39.60 meters.
Answer:
x = 32°
Step-by-step explanation:
The main concept is that all the angles in a triangle add up to 180.
(For example, 60° on all three angles make it an equilateral triangle)
Since all the angles add to 180°,
Subtract 148 from both sides:
Therefore, the value of x is 32°.
