Julien is invited to open one of two treasure chests. he is twice as likely to open treasure chest a than treasure chest b. in treasure chest a, there are 15 gold coins. however, 60% of them are fake. in treasure chest b, there are 8 gold coins. however, 25% of them are fake. after selecting a treasure chest to open, julien randomly samples four coins. calculate the probability that julien samples an equal number of real and fake gold coins from the random sample of four.

i believe it is c.y = 9x

rise over run. 9 units up over 1 unit right or 9/1

center (1,3) with radius 6

step-by-step explanation:

we must complete the square to find the center and radius of the circle.

first make sure the x and y squared terms have 1 as their coefficients. we also make sure x and y terms together.

we now create space between the x and y terms with parenthesis.

we complete the square by taking the middle terms -2x and the -6y - divide each and square them.

we add the squares to both sides.

simplify.

and write the quadratics in factored form.

the center is (h,k) or (1,3). the radius is the square root of 36 which is 6.

really really sorry if i'm

-12 -5(x + 4) = 3x

-12 - 5x - 20 = 3x

-12 - 20 - 5x = 3x

-32 - 5x = 3x

    + 5x   + 5x

-32 = 8x

8         8

- 4= x