Proving that a mathematical statement is true by using a specific condition.

See attachment below for question. The first attachment is the equation itself, the second and third attachments will describe O and omega as well as one sample solution.

Working with cardinality problems. Attachments in MS Word.

How do I determine the cardinality of an infinitely large set (such as real numbers)? What is c and 2^c mean?

Determining eigenvectors.

D and E are nxn matrices, E is invertible, DE = ED, and u is an eigenvector for D corresponding to x=5. a. Show that Eu is also an eigenvector for D corresponding to x=5. b. Show that u is an eigenvector for D^2. c. Show that u is an eigenvector for D^2 - 3D.

Proving a rational number

Prove how and why the square root of 2 can NOT be written as a rational number.

Finding a percentage of a number.

What is 66% of 21?

Finding the sum of interior angles. Diagram solution attached. Attachment in Word.

Find the sum of the interior angle of:pentagon,15-gon,and 18-gon.

Multiple Regression

My data set contains five variables for 96 nations in the world. Onlinepop Online Population PC's Number of Personal Computeres Phones Number of landline phones Educ Percent of GNP spent on education GNPPC Gross National Product per capita Here is correlatio ...continues

Standard Eror and Measurement (SEM)

If the raw score on a test is 75 and the Standard Eror and Measurement (SEM) is 5, what is the range of scores 2 standard errors out?

Alegbra problem

Twice as many dimes as nickes. The total value is 3.50. How many nickles are there?

Vector Subspace of the Vector Space

1. Determine whether the following sets W are vector subspaces of the vector space V. a. V=R^4, A and B are two 3 X 4 matrices. W={X is an element of R^4:Ax-3Bx=0}. b. V=C', W={f is an element of C': f(x+3)=f(x)+5 c. V=P, W={f is an element of P: f'(2)=0} d. V=C', W={f is an element of C': The integral of f(x)dx fr ...continues