Cómo hago una gráfica de barras con datos de una tabla de frecuencia

En el eje vertical, coloque las frecuencias. Etiquete este eje como "Frecuencia". En el eje horizontal, coloque el valor más bajo de cada intervalo. ... Dibuja una barra que se extienda desde el valor más bajo de cada intervalo hasta el valor más bajo del siguiente intervalo.

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:

answer: c.  

step-by-step explanation:

mixtures containing substances that get attracted to magnet can be separated using a magnet. we can separate iron from a mixture of sand and iron, as only iron attracts to the magnet.