Why is this a square root answer? by the rule that if two chords intersect in a circle, then the product of the one chord's segments are congruent to the product of the other chords' segments, the answer is 64.

explain the process good for brainliest.

using the intersecting chord theorem:

qj x pq = lq x mq

using what you have :

qj x pq = 10 x 8

qj x pq = 80

you are told qj = 4 x pq:

(4 x pq) x pq = 80

simplify:

4pq^2 = 80

divide both sides by 4:

pq^2 = 20

take the square root of both sides:

pq = +/-sqrt(20)

pq = 2sqrt(5)

now you have qj = 4 x pq = 4 x 2sqrt(5) = 8 sqrt(5)

pretty sure 750 each month!

step-by-step explanation:

b. would be the answer : )

step-by-step explanation:

step 1: add -16x to both sides.

16x−4y+−16x=64+−16x  

−4y=−16x+64

step 2: divide both sides by -4.

−4y /-4 = -16x + 64/-4

answer:   y=4x−16

hope i'm right