Answer:
the sum of all interior angles in a polygon, regular or not, is
18(n - 2)
where "n" is how many sides are there in the polygon, now, notice, this polygon has 7 sides, so is a heptagon, so the sum of its interior angles will be 18(7 - 2) or 900.
now, subtract all other angles from 900, and what's leftover is "x".
The crucial point in this problem is the amount of the data usage. Since it's not given by reasoning with math logic we can find the correct answer. Let's find that if we spend 5$ in the first case, how much amount of data we would be able to use. By setting
0.002$_______1 KB
5$_______x and x=2500 KB or 2.5 MB
From this fact, we can yield that if you are willing to use more than 2.5 MB of data, it is mathematically correct to choose the second option since in this case you will save money.
The answer is 5,22 simplified
Answer:
45.12%
Step-by-step explanation:
We have that l = 50
The probability density function of the exponential distribution is:
(1 / l) * e ^ (x * 1 / l) l> 0
f (X = x) = 0 otherwise
in this case X would come being the probability the road in 30 minutes or less to pick-up the children to go to school, it would come being:
P (X <= 30) = integral from 0 to 30 [1/50 e ^ (x / 50) dx]
It is integral as a result:
P (X <= 30) = (1/50) [e ^ (- x / 50) / (-1/50)]
We evaluate x = 0 up to x = 30
P (X <= 30) = (1/50) [e ^ (- 30/50) / (-1/50)] - (1/50) [e ^ (- 0/50) / (-1 / fifty)]
P (X <= 30) = -0.5488 - (-1)
P (X <= 30) = 0.4512
Therefore the probability is 45.12%
The answer is the letter T because the two ends will never meet.