GET 20 POINTS! --A circle centered at $A$ with radius $10$ is externally tangent to a circle centered at $B$ with radius $7.$ A line that is externally tangent to both circles intersects line $AB$ at $C.$ Find the length $BC.$

good for u

step-by-step explanation:

step-by-step explanation:

you divide the denominator by the numerator on both sides and if the quotients are equal then the fractions are equivalent

c

step-by-step explanation:

i think because what else can be a sample of every member

= 5

step-by-step explanation:

to find the 15th term substitute n = 15 into the nth term formula

= (- 3 × 15 ) + 50 = - 45 + 50 = 5