Aposter is shown below: a rectangle is shown. the length of the rectangle is labeled 10 feet. the width of the rectangle is labeled 4 feet. what are the dimensions if the poster is enlarged by a factor of three over two ? 12 ft by 30 ft 2 ft by 5 ft 6 ft by 15 ft 5 ft by 12 ft

The dimensions of the enlarged poster are  by  

Step-by-step explanation:

we know that

The scale factor is equal to the measure of the corresponding side of the enlarged poster divide by the the measure of the corresponding side of the original poster

Let

z-----> scale factor

x------> the measure of the corresponding side of the enlarged poster

y------> the measure of the corresponding side of the original poster

so

In this problem we have

Step 1

Find the length of the enlarged poster

we have

substitute

Step 2

Find the width of the enlarged poster

we have

substitute

therefore

the dimensions of the enlarged poster are  by  

40% off the regular price is the correct answer.

step-by-step explanation:

answer:

it is general formula that is used to write value to its excet position

a11 a12 a13

a21 a22 a23

it is the example of order 2 by 3 matrix in this

a11 means value occur in 1 st row 1st column

a12 means value occurs in 1st row 2nd column

a13 means value occur in 1st row and 3rd column

a21 means value occurs in 2nd row and 1st column

a22 means value occurs in 2nd row and in 2nd column

a23 means value occurs in 2nd row and in 3rd column