Answer:
See picture
Step-by-step explanation:
The rule is ...
The index of the surd becomes the denominator of the exponents inside.
Answer:
1? Because its the only number beetween 2 and 0.
Answer:
no I believe you are correct
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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