Homework Section Whatever

Karl Frinkle

Problem 1

This is a standard text cell, we can type as normal here, or we can do fancy math equation looking typesetting as well!  For instance, we can write out the formula for a function: f(x)  = (Sqrt[(x^3)+(x^2)+2x-1])+(2/x), so many times, you have to press the right arrow key twice to get out of the inline equation mode.

Problem 2

You will not have to transcribe the entire wording of the problem to your HW notebook, only keep the important info here.

65% of US households have pets
42% of the US households which have pets, have more than one
There are 117 million US households.

0.65*117000000

DecimalForm[%]

0.42*%

DecimalForm[%]

N[%,3]

NumberForm[%,3]

NumberForm[%,4]

Our answer, which represents the number of US households which have at least two pets, is "3.194"×(10^("7")) households.  Or 31.94 million households.

Problem 3

Remember, Alt+4 gives you a new section (i.e. a horizontal line break and large, left justified orange font).  And also Alt+7 gives you a new text cell.  The writing assistant, has plenty of fascinating typesetting options...

({{({{3x-4y=6+2α
4x+7y=-2+5β}})}})
I am now back in text mode.....