Homework Answers
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H e will...
Format: • The letter e will be recognised as Euler's number. • Use * to explicitly...
Format: • The letter e will be recognised as Euler's number. • Use * to explicitly indicate multiplication between variables and other variables, between variables and brackets, or between sets of brackets (e.g. x*y rather than xy; 2*(x+y) rather than 2(x+y)). • Put arguments of functions in brackets (e.g. sin(x) rather than sin x). Expand the function f(x, y) = ex.sin(y) - 5 at (In(2), 0) by Taylor's formula up to and including the second-order terms. f(x, y) =
Let Which of the following are TRUE? Select ALL that apply. Please show all your work....
Let
Which of the following are TRUE? Select ALL that apply. Please
show all your work.
a.
has a local maximum at
whenever
is an even integer
b.
has a saddle point at
whenever
is an even integer
c.
has a saddle point at
whenever
is an odd integer
d.
has a local minimum at
whenever
is an odd integer
fr, y) = sin(x + 7/2) +y? We were unable to transcribe this imageWe were unable to transcribe this imageWe...
Consider the following nonlinear program: min s.t. - (a) Express the objective function of the above problem in the standard quadratic function form: (b) Find the gradient and the Hessian of...
Consider the following nonlinear program: min s.t. - (a) Express the objective function of the above problem in the standard quadratic function form: (b) Find the gradient and the Hessian of f(x). (c) If possible, solve the minimisation problem and give reasons why the solution you found is a global minimum rather than just a local minimum. Otherwise, demonstrate that the problem is unbounded. f (x: y) = (x + 2y)2-2x-y We were unable to transcribe this imageWe were unable...
Help with part B, please! I have worked part a (answer below) and drew Mohr's circle,...
Help with part B, please!
I have worked part a (answer below) and drew Mohr's circle, but
I simply do not understand "b" at all. I know what hydrostatic
pressure is but I just do not understand what is asking or even how
to implement. Thanks!
Problem:
A stress element in plane stress encounters x = 20
MPa, y =
-10 MPa, and xy = 13
MPa.
(a) Determine the three principal stresses and maximum shear
stress.
( My answer:...
1.) 2.) 3.) can you please show all and every step thanks We were unable to...
1.)
2.)
3.)
can you please show all and every step thanks
We were unable to transcribe this imageFind the general solution of xy' – 4y = x* cos(2x). a) y = }* sin(22) + C7 b) y = žain(22) + C24 c) y= *=* sin(22) + CZ a) y = 12cos(22) + C+ e) ©y = - * -* cos(2) +CZ L[y] =y'-y is a linear operator. If u(x) = –224 + 4ce3x, then find L[u(x)]. a) 16e3+ +...
There are random variables X and Y with a combined density function as: 1) Find the...
There are random variables X and Y with a combined density function as: 1) Find the constant c. (Hint: Find out the distribution of Y and extract c from it) 2)Show that fxy(x,y) = el se We were unable to transcribe this image
1. Consider the function. (a) Draw the level curves of this function for levels c = 0, 1, 2. Please clearly label each level curve with the appropriate value of c. (b) Use the previous answer to sketc...
1. Consider the function. (a) Draw the level curves of this function for levels c = 0, 1, 2. Please clearly label each level curve with the appropriate value of c. (b) Use the previous answer to sketch the graph (c) Find all first and second order derivatives of this function. (Please label all your derivatives clearly.) (d) Find the equation of the tangent plane to 2.. Let (a) Show that does not exist. (b) Show that does exist and...
Consider the following competing hypotheses: H0: ρxy ≥ 0 HA: ρxy < 0 The sample consists of 30 observations and the sample correlation coefficient is –0.46. [You may find it useful to reference t...
Consider the following competing hypotheses:
H0: ρxy ≥ 0
HA: ρxy < 0
The sample consists of 30 observations and the sample correlation
coefficient is –0.46. [You may find it useful to reference
the t table.]
a-1. Calculate the value of the test statistic.
(Round intermediate calculations to at least 4 decimal
places and final answer to 3 decimal places.)
a-2. Find the p-value.
p-value < 0.01
p-value
0.10
0.05
p-value < 0.10
0.025
p-value < 0.05
0.01
p-value <...
For this program you will build a modular equation evaluator (you may want to start from...
For this program you will build a modular equation evaluator
(you may want to start from your solution to programming assignment
1). Once again, you will write a C program that evaluates the
equations provided below. The program must prompt the user for
inputs for the equations and evaluate them based on the inputs. All
equations should be placed into a single .c file. This means you
should NOT have 7 Visual Studio projects
or 7 .c files. All variables...
Evaluating using Green's theorem (4x^3+sin(y^2))dy-(4y^3+cos(x^2))dx where C is the boundary of the region x^2+y^24 Please be...
Evaluating using Green's theorem
(4x^3+sin(y^2))dy-(4y^3+cos(x^2))dx where C is the boundary of the
region x^2+y^24
Please be detail thanks.
We were unable to transcribe this image3. EVALUATE USING GREEN'S THEOREM (4x++sinyydy –(4y+cosx2) dx, WHERE C IS THE BOUNDARY OF THE REGION X+Y24.
Format: • The letter e will be recognised as Euler's number. • Use * to explicitly indicate multiplication between variables and other variables, between variables and brackets, or between sets of brackets (e.g. x*y rather than xy; 2*(x+y) rather than 2(x+y)). • Put arguments of functions in brackets (e.g. sin(x) rather than sin x). Expand the function f(x, y) = ex.sin(y) - 5 at (In(2), 0) by Taylor's formula up to and including the second-order terms. f(x, y) =
Let
Which of the following are TRUE? Select ALL that apply. Please
show all your work.
a.
has a local maximum at
whenever
is an even integer
b.
has a saddle point at
whenever
is an even integer
c.
has a saddle point at
whenever
is an odd integer
d.
has a local minimum at
whenever
is an odd integer
fr, y) = sin(x + 7/2) +y? We were unable to transcribe this imageWe were unable to transcribe this imageWe...
Help with part B, please!
I have worked part a (answer below) and drew Mohr's circle, but
I simply do not understand "b" at all. I know what hydrostatic
pressure is but I just do not understand what is asking or even how
to implement. Thanks!
Problem:
A stress element in plane stress encounters x = 20
MPa, y =
-10 MPa, and xy = 13
MPa.
(a) Determine the three principal stresses and maximum shear
stress.
( My answer:...
1.)
2.)
3.)
can you please show all and every step thanks
We were unable to transcribe this imageFind the general solution of xy' – 4y = x* cos(2x). a) y = }* sin(22) + C7 b) y = žain(22) + C24 c) y= *=* sin(22) + CZ a) y = 12cos(22) + C+ e) ©y = - * -* cos(2) +CZ L[y] =y'-y is a linear operator. If u(x) = –224 + 4ce3x, then find L[u(x)]. a) 16e3+ +...
Consider the following competing hypotheses:
H0: ρxy ≥ 0
HA: ρxy < 0
The sample consists of 30 observations and the sample correlation
coefficient is –0.46. [You may find it useful to reference
the t table.]
a-1. Calculate the value of the test statistic.
(Round intermediate calculations to at least 4 decimal
places and final answer to 3 decimal places.)
a-2. Find the p-value.
p-value < 0.01
p-value
0.10
0.05
p-value < 0.10
0.025
p-value < 0.05
0.01
p-value <...
For this program you will build a modular equation evaluator
(you may want to start from your solution to programming assignment
1). Once again, you will write a C program that evaluates the
equations provided below. The program must prompt the user for
inputs for the equations and evaluate them based on the inputs. All
equations should be placed into a single .c file. This means you
should NOT have 7 Visual Studio projects
or 7 .c files. All variables...
Evaluating using Green's theorem
(4x^3+sin(y^2))dy-(4y^3+cos(x^2))dx where C is the boundary of the
region x^2+y^24
Please be detail thanks.
We were unable to transcribe this image3. EVALUATE USING GREEN'S THEOREM (4x++sinyydy –(4y+cosx2) dx, WHERE C IS THE BOUNDARY OF THE REGION X+Y24.
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