As shown in the diagram of the right triangles below, triangle: abc ~ triangle: def, ab = 7x, bc = 4, de = 7, ef = x. what is thr perimeter of triangle: def to the nearest hundredth?

since triangles are similar

4/x = 7x/7

=》 4/x = x

=》x^2 = 4

=》 x = 2

for right triangles a^2 = b^2+c^2

DF^2 = 7^2+2^2 = 53

=》 DF = 7.28

perimeter of DEF = 7 +2+7.28 = 16.28

step by step explanation: when u removing the parentheses and combined them that would be : x+3y-x-y=2y

first, let's see what the pattern is.

58 - x = 47

46 - x = 36

x = 9

so this means that the term after 25 is 25 - 9:

the next term in the sequence is 16.