11^9–11^8+11^7 is divisible by 3 and 37.
1 answer:
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Answer:
x = 0.6623
y = 8
Image is attached for refernce of my solution
Step-by-step explanation:
In Δ DEF
By applying pythagoras theoram,
DE =
=
∴ DE = 8
In Δ ABC
BC = y = 12 sin 30° = 6
AC = + DE + x =
+ 8 + x = 12 cos 30°
⇒ 9.73 + x = 10.39
<h3>⇒ x = 0.6623</h3>