I have three numbers. The biggest one is twice the middle one, and the biggest one plus the middle one is four times the smalles
t one. The smallest one plus the middle one is two less than the biggest one. What are the numbers? ...?
2 answers:
Let
x------> the biggest number
y------> the middle number
z------> the smallest number
we know that
-------> equation
-------> equation
-------> equation
substitute equation in equation
and equation
------>
------> equation
---->
------> equation
using a graph tool-----> to resolve the system of equations
see the attached figure
the solution is the point
<u>Find the value of x</u>
therefore
<u>the answer is</u>
the biggest number is
the the middle number is
the smallest number is
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Answer:
(1). y = x ~ Exp (1/3).
(2). Check attachment.
(3). EY = 3(1 - e^-2).
(4). Var[y] = 3(1 - e^-2) (1 -3 (1 - e^-2)) - 36e^-2.
Step-by-step explanation:
Kindly check the attachment to aid in understanding the solution to the question.
So, from the question, we given the following parameters or information or data;
(A). The probability in which attempt to establish a video call via some social media app may fail with = 0.1.
(B). " If connection is established and if no connection failure occurs thereafter, then the duration of a typical video call in minutes is an exponential random variable X with E[X] = 3. "
(C). "due to an unfortunate bug in the app all calls are disconnected after 6 minutes. Let random variable Y denote the overall call duration (i.e., Y = 0 in case of failure to connect, Y = 6 when a call gets disconnected due to the bug, and Y = X otherwise.)."
(1). Hence, for FY(y) = y = x ~ Exp (1/3) for the condition that zero is equal to y = x < 6.
(2). Check attachment.
(3). EY = 3(1 - e^-2).
(4). Var[y] = 3(1 - e^-2) (1 -3 (1 - e^-2)) - 36e^-2.
The condition to follow in order to solve this question is that y = 0 if x ≤ 0, y = x if 0 ≤ x ≤ 6 and y = 6 if x ≥ 6.
Answer:
$2.25/km
Step-by-step explanation:
The cost charged for a total taxi ride of was $32. To get the cost per km, we divide the cost charged for the total taxi ride by the total distance that was traveled by the taxi. The cost per km is given by:
Cost per km =
Therefore the cost per kilometer is $2.25 per kilometer. Each kilometer traveled by the taxi cost $2.25.
Answer:
Area of table cloth = 49/9 m² or 5.44 m²
Step-by-step explanation:
Given:
Side of table cloth = = 7/3 m
Shape of cloth is square
Find:
Area of table cloth
Computation:
Area of square = side²
So,
Area of table cloth = side²
Area of table cloth = (7/3)²
Area of table cloth = 49/9 m² or 5.44 m²