In Triangle ABC, the length of AB is 3 cm, and the length of BC is 7 cm. Triangle ABC will be dilated with the center at the origin to create Triangle
A'B'C'. If the image of Point A(-3,5) after the dilation is A' (–12,20),
what is the length of B'C'?
12 cm
O 16 cm
0 22 cm
28 cm

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step-by-step explanation:

you didn't post any answer choices, so its not 100% clear what your teacher is looking for

however, log(15/7) is equivalent to log(15) - log(7)

i'm using the rule log(x/y) = log(x) - log(y)

a. 32 degrees

step-by-step explanation:

here we have to use the rule.

m∠e = 1/2 (major arc - minor arc)

m∠e = 1/2 (212 - 148)

m∠e = 1/2 (64)

m∠e = 32 degrees

answer: a. 32 degrees

you