Answer:
2/21+6/7 = 20/21
Step-by-step explanation:
2/21+6/7
=2/21+(6*3/7*3)
=2/21+18/21
=20/21
Hope this helps! Comment any questions <3
Answer:
42.40705%
Step-by-step explanation:
(1 - (23/100)^(19/9) = 1 + r/100
0.57593 = 1 + r/100
r = 42.40705%
The ratio of areas is the square of the scale factor, so that factor is
√(320/180) = 4/3
These triangles are congruent by AAS condition hence the statement is true
