Question

For what values of r will the area of the shaded region be greater than or equal to 12 square units? Write
your answer as an inequality.
3
The values are

Answer 1

Resposta:

Para quais valores de r a área da região sombreada será maior ou igual a 12 unidades quadradas? Escreva

Explicação passo-a-passo:

espero tem ajudado ✌✌(❤´艸｀❤)

Answer 2

Resposta:

I believe I showed you how to answer this question before. But in case you did not read my answer, I will guide you through the steps.

You are going to set the inequality

area of shaded region ≥ 12

and you know that

area of shaded region = area of entire figure - area of unshaded region

I will assume that the shaded region is the boundary between the rectangle and triangle.

area of shaded region = area of rectangle - area of triangle

= (length *width) - area of triangle

= 3r - area of triangle

Therefore,

3r - area of triangle ≥ 12

3r ≥ 12 + area of triangle

r ≥ 4 + (area of triangle / 3)