What is the surface area of the rectangular pyramid below?

a rectangular pyramid. the rectangular base has a length of 4.8 meters and height of 3.8 meters. 2 triangular sides have a base of 4.8 meters and height of 2.6 meters. 2 triangular sides have a base of 3.8 meters and height of 2.9 meters.

Step-by-step explanation:

we know that

The surface area of the rectangular pyramid is equal to the area of its rectangular base plus the area of its four triangular faces

so

step 1

Find the area of its rectangular base

step 2

Find the area of its four triangular faces

step 3

Find the surface area

Adds the areas

360 different combinations

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: