Select the relation that is a function. a. {(21, 11), (21, 10), (21, 9), (21, 8)} c. {(-6, -5), (3, 2), (10, 8), (3, 3)} b. {(-2, -, -1), (16, 3), (-3, -9)} d. {(5, 10), (-3, 10), (-3, -10), (4, 7)} select the best answer from the choices provided a b c d

answer:

step-by-step explanation:

{(21, 11), (21, 10), (21, 9), (21, 8)} c. {(-6, -5), (3, 2), (10, 8), (3, 3)} b. {(-2, -, -1), (16, 3), (-3, -9)} d. {(5, 10), (-3, 10), (-3, -10), (4, 7)}

coin flip

non-answer:

choosing

sorry if this isnt what you're looking for i dont really understand the question

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'.