In triangle ABC, the measure of ∠B is 90°, BC=16, and AC=20. Triangle DEF is similar to triangle ABC, where vertices D, E, and F correspond to vertices A, B, and C, respectively, and each side of triangle DEF is 1/3 the length of the corresponding side of triangle ABC. What is the value of sinF?

Question

Answer: 3/5 or 0.6

If x is the average (arithmetic mean) of m and 9, y is the average of 2m and 15, and z is the average of 3m and 18, what is the average of x, y, and z in terms of m?

A) m+6
B) m+7 ****
C) 2m+14
D) 3m+21

My answer ***

Answer 1

Are these correct ?

Answer 2

both are correct

Answer 3

Thanks !

Answer 4

ac length