An animal feed to be mixed from soybean meal and oats must contain at least 120 lb of protein, 24 lb of fat, and 10 lb of mineral ash.

Each sack of soybeans costs $ 15 and contains 50 lb of protein, 8 lb of fat, and 5 lb of mineral ash.

Each sack of oats costs $5 and contains 15 lb of protein, 5 lb of fat, and 1 lb of mineral ash.

How many sacks of each should be used to satisfy the minimum requirements at minimum cost?

b. an equilateral triangle inscribed in a circle

step-by-step explanation:

we are given the figure of two circles having a triangle inside.

now, we know that,

"when a figure is lying inside an another figure, then the outside figure is known as circumscribed figure and the figure lying inside is referred to as the inscribed figure".

as we see that, the circles are containing the triangle completely.

thus, the circles are the circumscribed figures and the triangle is the inscribed figure.

hence, we get, 'an equilateral triangle is inscribed in a circle'.

just keep asking questions until you have a better understanding.

step-by-step explanation: