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30 + 11.3 = ?
30 + 11.3 = 41.3
41.3 - 11.3 = 30.
A = 41.3
The answer is 6.75 because you have to subtract 5.5 from 12.25
Answer:
B
Step-by-step explanation:
For cartesian to polar transformation,
x = rcosA , y = rsinA.
Put in the values in the given equation. And (cosA)^2 - (sinA)^2 = cos(2A)
The answer for this problem is 78.54cm²
