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Firdavs [7]
2 years ago
8

Determine the center and radius of the following circle equation: x2 + y2 – 16x + 10y + 80 = 0?

Mathematics
1 answer:
Alexeev081 [22]2 years ago
5 0

Answer:

centre is (8, -5)

r =  \sqrt{ {g}^{2} +  {f}^{2}  - c }  \\  =  \sqrt{64 + 25 - 80}  \\  =  \sqrt{9}  \\ r = 3 \\ radius \:  =  \: 3 \: units

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<u>Step-by-step explanation:</u>

Here we have , student council at Smith Valley High School is planning to sell t-shirts as part of a fundraiser using company A, the shirts cost $4.50 each. The student council has to pay the shirt company a design fee of $45. the shirts will be sold for $12 each. We need to find a function rule describes the amount of profit that will be made by the student council on the shirt sales . Let's find out:

Each shirt cost $4.50 . The student council has to pay the shirt company a design fee of $45. the shirts will be sold for $12 each , So the total amount of t shirt he sell is :

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Now , expenses is given by :

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