A jar contains 4 green marbles and 6 yellow marbles. Two marbles are drawn, with replacement, from the jar. What is the probability that both marbles are green?

If there are a total of 10 marbles in jar, then It´s a 4/10 chance you get two marbles that are green

Step-by-step explanation:

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'.