Question

Can someone pls help me

Answer 1

when chords cross the product of the 2 segments formed = same for both chords
so 7 * 28 = 4AC * AC

solve for AC

Answer 2

okay hold up

Answer 3

196=4ac*ac

Answer 4

I don't know what I am doing wrong

Answer 5

you are doing OK
4ac*ac = 4 ac^2

so
4 ac^2 = 196
ac^2 = 49

ac = square root of 49

Answer 6

7

Answer 7

your answer is the square root of 49 (positive one of course)

Answer 8

correct

Answer 9

wait don't leave

Answer 10

i need help on this one too