Answer:
X=7
Step-by-step explanation:
X = SQRT(49)
X = 7
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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
O, C , B , A because the important will disguise the sisomatic amplitude
Answer:
6x - 3
Step-by-step explanation:
2(x-3) + 4x + 3
= 2x - 6 + 4x + 3 (Multiply out)
= 2x + 4x - 6 + 3 (Rearrange)
= 6x - 3
…………………………………………2737483829
