4. A textbook has 428 pages numbered in order starting with 1. You flip to a random
page in the book in a way that it is equally likely to stop at any of the pages.
a. What is the sample space for this experiment?
b. What is the probability that you turn to page 45
c. What is the probability that you turn to an even numbered page?
d. If you repeat this experiment 50 times, about how many times do you expect
you will turn to an even numbered page?

he used the algebra tiles correctly.

step-by-step explanation:

given : 3x(2x-1)

solution :

since he used algebra tiles .

armando's solution is the same in the solution shown in figure

as he distributed 2x into x and x and wrote them vertically

and also write   -1 vertically

and 3x into x and x and x and wrote it horizontally

performing the multiplication in the algebra tiles we get

and solving the given expression :

3x(2x-1)

since solving the expression using tiles   and solving the expression algebraically we get the same answer

thus   we can choose the first statement as the answer to this problem which is "he used the algebra tiles correctly".

he kicked it up? is this the answer ?

step-by-step explanation:

answer: no

step-by-step explanation: because the big angle will spread away the 2 side that it is on and make the opposite side even longer.