Consider the following system of equations: 10 + y = 5x + x2 5x + y = 1 The first equation is an equation of a . The second equa
2 answers:
Answer: The first equation is an equation of a parabola. The second equation is an equation of a line.
Explanation:
The first equation is,
In this equation the degree of y is 1 and the degree of x is 2. The degree of both variables are not same. Since the coefficients of y and higher degree of x is positive, therefore it is a graph of an upward parabola.
The second equation is,
In this equation the degree of x is 1 and the degree of y is 1. The degree of both variables are same. Since both variables have same degree which is 1, therefore it is linear equation and it forms a line.
Therefore, the first equation is an equation of a parabola. The second equation is an equation of a line.
You might be interested in
The first step for finding out if the expression provided is equivalent to 
is to reduce the fraction with
.
Now reduce the fraction with y.
Finally,, reduce the fraction with 8 to get your final answer.
Let me know if you have any further questions.
:)
Now reduce the fraction with y.
Finally,, reduce the fraction with 8 to get your final answer.
Let me know if you have any further questions.
:)
Answer:
The probability that the whole package is uppgraded in less then 12 minutes is 0,1271
Step-by-step explanation:
The mean distribution for the length of the installation (in seconds) of the programs will be denoted by X. Using the Central Limit Theorem, we can assume that X is normal (it will be pretty close). The mean of X is 15 and the variance is 15, hence, the standard deviation is √15 = 3.873.
We want to find the probability that the full installation process takes less than 12 minutes = 720 seconds. Then, in average, each program should take less than 720/68 = 10.5882 seconds to install. Hence, we want to find the probability of X being less than 10.5882. For that, we will take W, the standariation of X, given by the following formula
We will work with , the cummulative distribution function of the standard Normal variable W. The values of
can be found in the attached file.
Since the density function of a standard normal random variable is symmetrical, then
Therefore, the probability that the whole package is uppgraded in less then 12 minutes is 0,1271.