Find the perimeter and area of the figure.
9 cm
4 cm
The perimeter is
centimeters.
The area is
square centimeters.

P: 26cm, A:36cm

Step-by-step explanation:

Remember, the perimeter of a rectangle is all of the sides added up. We already know the width is 4cm and the length is 9cm, and since the opposite sides are the same (the lenghts are the same size, the width are always the same size), we know that we have 2 4cm sides and 2 9cm sides.

Add: 4 + 4 + 9 + 9 and that is your perimeter.

The area is the length and width multiplied together:

Multiply: 9 x 4 and that is your area.

b: |12 – x| ≤ 0.25

step-by-step explanation:      

let x be the possible lengths in inches, of the ribbons jaime cut.

we have been given that jaime is cutting strips of ribbon for a project. he tries to cut each piece to be 12 inches long, but sometimes he cuts it too long or too short by as much as 0.25 inch.  

we can represent this information in an inequality as:

by the definition of absolute value function we will get,

upon combining our inequalities we will get,

therefore, the inequality   describes all the possible lengths (x), in inches, of the ribbons jaime cut.

step-by-step explanation: