5. The radii of two concentric circles are 15 cm and 7 cm. A diameter AB
of the larger circle intersects the smaller circle at C and D. Find two
possible values for AC.
Pls help :(

example 2 – simplify: step 1: completely factor both the numerators and denominators of all fractions. step 2: change the division sign to a multiplication sign and flip (or reciprocate) the fraction after the division sign; essential you need to multiply by the reciprocal. step 3 : cancel or reduce the fractions.

answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,

i think the amount would be $140.62

answer: c

(2, -4)

goes 7 to the

(9, 4)

easy