Answer:
Step-by-step explanation:
Please use " ^ " for exponentiation: 50 - x^2 = 0.
Solving for x^2, we get: x^2 = 50
Taking the square root of both sides: x = ±√(50), or x = ±7.07
None of the three possible answers here is correct.
Congruent angles of what... be more specific please..
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Answer: £76.50
You find 10% of 85 = 8.5
then you do £85-£8.50 = 76.50