Doubt --!!
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The answer is 280 because if you multiply 400 by .3 you get 120 and if you subtract 120 from 400 you get 280
Answer:
r = 5sec(θ)
Step-by-step explanation:
The usual conversion is ...
y = r·sin(θ)
x = r·cos(θ)
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The second of these can be used here.
r·cos(θ) -5 = 0
r·cos(θ) = 5
r = 5/cos(θ) = 5sec(θ)
A suitable polar equation is ...
r = 5sec(θ)
Answer: $8929
Step-by-step explanation: