(20 points! ) delisa is designing a website that will be viewable on both computers and mobile devices, so the website as it is seen on a mobile device is proportional to the website as it is seen on a computer. the diagonal of delisa's computer monitor is 21 inches, and the diagonal of delisa's tablet is 9.7 inches.

if an image is 16 centimeters wide on the website when it's displayed on delisa's computer, how wide should the image be on the tablet? round to the nearest tenth of a millimeter, if necessary.

Delisa's computer monitor is 21 inches, and the diagonal of Delisa's tablet is 9.7 inches.

Hope this helped!

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".

the equivalent expression are always the hardest ones but you look at the gcf also

step-by-step explanation: